diff --git a/SAS/TMSS/frontend/tmss_webapp/src/components/Timeline/CalendarTimeline.js b/SAS/TMSS/frontend/tmss_webapp/src/components/Timeline/CalendarTimeline.js
index 237eefd86136b5d7ee9fcd14b08528f5413962bf..ba59f506ee48ddee32e91bc4d2b3cc6d58dc7800 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/components/Timeline/CalendarTimeline.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/components/Timeline/CalendarTimeline.js
@@ -18,10 +18,11 @@ import { Dropdown } from 'primereact/dropdown';
 import UtilService from '../../services/util.service';
 
 import 'react-calendar-timeline/lib/Timeline.css';
-import { Calendar } from 'primereact/calendar';
+import "flatpickr/dist/flatpickr.css";
 import { Checkbox } from 'primereact/checkbox';
 import { ProgressSpinner } from 'primereact/progressspinner';
-import { CustomPageSpinner } from '../CustomPageSpinner';
+// import { CustomPageSpinner } from '../CustomPageSpinner';
+import Flatpickr from "react-flatpickr";
 import UIConstants from '../../utils/ui.constants';
 
 // Label formats for day headers based on the interval label width
@@ -69,9 +70,11 @@ export class CalendarTimeline extends Component {
           group = group.concat(props.group);
       }
       const defaultZoomLevel = _.find(ZOOM_LEVELS, {name: DEFAULT_ZOOM_LEVEL});
+      const defaultStartTime = props.startTime?props.startTime.clone():null || moment().utc().add(-1 * defaultZoomLevel.value/2, 'seconds');
+      const defaultEndTime = props.endTime?props.endTime.clone():null || moment().utc().add(1 * defaultZoomLevel.value/2, 'seconds');
       this.state = {
-        defaultStartTime: props.startTime?props.startTime.clone():null || moment().utc().add(-1 * defaultZoomLevel.value/2, 'seconds'),
-        defaultEndTime: props.endTime?props.endTime.clone():null || moment().utc().add(1 * defaultZoomLevel.value/2, 'seconds'),
+        defaultStartTime: defaultStartTime,
+        defaultEndTime: defaultEndTime,
         group: group,
         items: props.items || [],
         //>>>>>> Properties to pass to react-calendar-timeline component
@@ -81,7 +84,7 @@ export class CalendarTimeline extends Component {
         maxZoom: props.maxZoom || (32 * 24 * 60 * 60 * 1000),       // 32 hours
         zoomLevel: props.zoomLevel || DEFAULT_ZOOM_LEVEL,
         isTimelineZoom: true,
-        zoomRange: null,
+        zoomRange: this.getZoomRange(defaultStartTime, defaultEndTime),
         prevZoomRange: null,
         lineHeight: props.rowHeight || 50,                          // Row line height
         sidebarWidth: props.sidebarWidth || 200,
@@ -141,6 +144,7 @@ export class CalendarTimeline extends Component {
       this.zoomIn = this.zoomIn.bind(this);
       this.zoomOut = this.zoomOut.bind(this);
       this.setZoomRange = this.setZoomRange.bind(this);
+      this.getZoomRangeTitle = this.getZoomRangeTitle.bind(this);
       //<<<<<< Functions of this component
       
       //>>>>>> Public functions of the component
@@ -193,6 +197,9 @@ export class CalendarTimeline extends Component {
         }
         if (this.state.isLive) {
             this.changeDateRange(this.state.defaultStartTime.add(1, 'second'), this.state.defaultEndTime.add(1, 'second'));
+            if (systemClock) {
+                this.setState({zoomRange: this.getZoomRange(this.state.defaultStartTime, this.state.defaultEndTime)});
+            }
             // const result = this.props.dateRangeCallback(this.state.defaultStartTime.add(1, 'second'), this.state.defaultEndTime.add(1, 'second'));
             // let group = DEFAULT_GROUP.concat(result.group);
         }
@@ -800,7 +807,8 @@ export class CalendarTimeline extends Component {
         updateScrollCanvas(newVisibleTimeStart.valueOf(), newVisibleTimeEnd.valueOf());
         this.changeDateRange(newVisibleTimeStart, newVisibleTimeEnd);
         // this.setState({defaultStartTime: moment(visibleTimeStart), defaultEndTime: moment(visibleTimeEnd)})
-        this.setState({defaultStartTime: newVisibleTimeStart, defaultEndTime: newVisibleTimeEnd});
+        this.setState({defaultStartTime: newVisibleTimeStart, defaultEndTime: newVisibleTimeEnd,
+                        zoomRange: this.getZoomRange(newVisibleTimeStart, newVisibleTimeEnd)});
     }
 
     /**
@@ -1066,7 +1074,8 @@ export class CalendarTimeline extends Component {
             const endTime = moment().utc().add(24, 'hours');
             let result = await this.changeDateRange(startTime, endTime);
             let group = DEFAULT_GROUP.concat(result.group);
-            this.setState({defaultStartTime: startTime, defaultEndTime: endTime, 
+            this.setState({defaultStartTime: startTime, defaultEndTime: endTime,
+                            zoomRange: this.getZoomRange(startTime, endTime), 
                             zoomLevel: DEFAULT_ZOOM_LEVEL, dayHeaderVisible: true, 
                             weekHeaderVisible: false, lstDateHeaderUnit: "hour",
                             group: group, items: result.items});
@@ -1122,7 +1131,8 @@ export class CalendarTimeline extends Component {
             let result = await this.changeDateRange(startTime, endTime);
             let group = DEFAULT_GROUP.concat(result.group);
             this.setState({zoomLevel: zoomLevel, defaultStartTime: startTime, defaultEndTime: endTime, 
-                            isTimelineZoom: true, zoomRange: null, 
+                            isTimelineZoom: true, 
+                            zoomRange: this.getZoomRange(startTime, endTime), 
                             dayHeaderVisible: true, weekHeaderVisible: false, lstDateHeaderUnit: 'hour',
                             group: group, items: result.items});
         }
@@ -1148,6 +1158,7 @@ export class CalendarTimeline extends Component {
         let group = DEFAULT_GROUP.concat(result.group);
         this.setState({defaultStartTime: newVisibleTimeStart,
                         defaultEndTime: newVisibleTimeEnd,
+                        zoomRange: this.getZoomRange(newVisibleTimeStart, newVisibleTimeEnd), 
                         group: group, items: result.items});
     }
 
@@ -1171,6 +1182,7 @@ export class CalendarTimeline extends Component {
         let group = DEFAULT_GROUP.concat(result.group);
         this.setState({defaultStartTime: newVisibleTimeStart,
                         defaultEndTime: newVisibleTimeEnd,
+                        zoomRange: this.getZoomRange(newVisibleTimeStart, newVisibleTimeEnd), 
                         group: group, items: result.items});
     }
 
@@ -1206,11 +1218,11 @@ export class CalendarTimeline extends Component {
      */
     async setZoomRange(value){
         let startDate, endDate = null;
-        if (value) {
+        if (value && value.length>0) {
             // Set all values only when both range values available in the array else just set the value to reflect in the date selection component
-            if (value[1]!==null) {
-                startDate = moment.utc(moment(value[0]).format("YYYY-MM-DD"));
-                endDate = moment.utc(moment(value[1]).format("YYYY-MM-DD 23:59:59"));
+            if (value[1]) {
+                startDate = moment.utc(moment(value[0]).format("YYYY-MM-DD HH:mm:ss"));
+                endDate = moment.utc(moment(value[1]).format("YYYY-MM-DD HH:mm:ss"));
                 let dayHeaderVisible = this.state.dayHeaderVisible;
                 let weekHeaderVisible = this.state.weekHeaderVisible;
                 let lstDateHeaderUnit = this.state.lstDateHeaderUnit;
@@ -1231,12 +1243,49 @@ export class CalendarTimeline extends Component {
             }   else {
                 this.setState({zoomRange: value});
             }
+        }   else if (value && value.length===0) {
+            this.setState({zoomRange: this.getZoomRange(this.state.defaultStartTime, this.state.defaultEndTime)});
         }   else {
             this.resetToCurrentTime();
         }
     }
 
-  async changeWeek(direction) {
+    /**
+     * Function to set previous selected or zoomed range if only one date is selected and 
+     * closed the caldendar without selecting second date.
+     * @param {Array} value - array of Date object.
+     */
+    validateRange(value) {
+        if (value && value.length===1) {
+            this.setState({zoomRange: this.getZoomRange(this.state.defaultStartTime, this.state.defaultEndTime)});
+        }
+    }
+
+    /**
+     * Function to convert moment objects of the zoom range start and end time to Date object array.
+     * @param {moment} startTime 
+     * @param {moment} endTime 
+     * @returns Array of Date object
+     */
+    getZoomRange(startTime, endTime) {
+        return [moment(startTime.format(UIConstants.CALENDAR_DATETIME_FORMAT)).toDate(),
+            moment(endTime.format(UIConstants.CALENDAR_DATETIME_FORMAT)).toDate()];
+    }
+
+    /**
+     * Function to get the formatted string of zoom range times.
+     * @returns String - formatted string with start time and end time in the zoom range
+     */
+    getZoomRangeTitle() {
+        const zoomRange = this.state.zoomRange;
+        if (zoomRange && zoomRange.length === 2) {
+            return `${moment(zoomRange[0]).format(UIConstants.CALENDAR_DATETIME_FORMAT)} to ${moment(zoomRange[1]).format(UIConstants.CALENDAR_DATETIME_FORMAT)}`;
+        }   else {
+            return 'Select Date Range'
+        }
+    }
+
+    async changeWeek(direction) {
         this.setState({isWeekLoading: true});
         let startDate = this.state.group[1].value.clone().add(direction * 7, 'days');
         let endDate = this.state.group[this.state.group.length-1].value.clone().add(direction * 7, 'days').hours(23).minutes(59).seconds(59);
@@ -1314,13 +1363,32 @@ export class CalendarTimeline extends Component {
                     <div className="p-col-4 timeline-filters">
                         {this.state.allowDateSelection &&
                         <>
-                        {/* <span className="p-float-label"> */}
-                        <Calendar id="range" placeholder="Select Date Range" selectionMode="range" dateFormat="yy-mm-dd" showIcon={!this.state.zoomRange}
-                                value={this.state.zoomRange} onChange={(e) => this.setZoomRange( e.value )} readOnlyInput />
-                        {/* <label htmlFor="range">Select Date Range</label>
-                        </span> */}
-                        {this.state.zoomRange && <i className="pi pi-times pi-primary" style={{position: 'relative', left:'90%', bottom:'20px', cursor:'pointer'}} 
-                                                    onClick={() => {this.setZoomRange( null)}}></i>}
+                        <Flatpickr data-enable-time 
+                                    data-input options={{
+                                                    "inlineHideInput": true,
+                                                    "wrap": true,
+                                                    "enableSeconds": true,
+                                                    "time_24hr": true,
+                                                    "minuteIncrement": 1,
+                                                    "allowInput": true,
+                                                    "mode": "range",
+                                                    "defaultHour": 0
+                                                    }}
+                                    title=""
+                                    value={this.state.zoomRange}
+                                    onChange={value => {this.setZoomRange(value)}} 
+                                    onClose={value => {this.validateRange(value)}}>
+                            <input type="text" data-input className={`p-inputtext p-component calendar-input`} title={this.getZoomRangeTitle()} />
+                            <button class="p-button p-component p-button-icon-only calendar-button" data-toggle
+                                    title="Reset to the default date range" >
+                                    <i class="fas fa-calendar"></i>
+                            </button>
+                            <button class="p-button p-component p-button-icon-only calendar-reset" onClick={() => {this.setZoomRange( null)}} 
+                                    title="Reset to the default date range" >
+                                    <i class="fas fa-sync-alt"></i>
+                            </button>
+                        </Flatpickr>
+                        <span>Showing Date Range</span>
                         </>}
                         {this.state.viewType===UIConstants.timeline.types.WEEKVIEW &&
                             <>
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/layout/sass/_timeline.scss b/SAS/TMSS/frontend/tmss_webapp/src/layout/sass/_timeline.scss
index e9e71c99a8042f651bc6227ef639e90b6f6841b5..573ce55702ebf05f50fd2d7fe384da36dc6b03b3 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/layout/sass/_timeline.scss
+++ b/SAS/TMSS/frontend/tmss_webapp/src/layout/sass/_timeline.scss
@@ -69,6 +69,35 @@
     // width: auto !important;
 }
 
+.timeline-filters .p-calendar .p-inputtext {
+    font-size: 12px;
+}
+
+.calendar-input {
+    width: 75% !important;
+    border-top-right-radius: 0px !important;
+    border-bottom-right-radius: 0px !important;
+    font-size:12px !important;
+    height: 29px;
+}
+
+.calendar-button {
+    position: relative;
+    width: 20px !important;
+    height: 29px;
+    margin-left: -2px !important;
+    border-radius: 0px !important;
+}
+
+.calendar-reset {
+    position: relative;
+    width: 20px !important;
+    height: 29px;
+    margin-left: 0px !important;
+    border-top-left-radius: 0px !important;
+    border-bottom-left-radius: 0px !important;
+}
+
 .timeline-week-span {
     margin-left: 5px;
     margin-right: 5px;
@@ -149,6 +178,22 @@
     color: orange;
 }
 
+.su-visible {
+    margin-top: 30px;
+    // margin-left: -59px !important;
+}
+
+.su-hidden {
+    margin-left: -20px !important;
+    z-index: 0 !important;
+    margin-top:40px;
+}
+
+.su-hidden>button {
+    width: 80px;
+    transform: translateX(-50%) translateY(-50%) rotate(-90deg);
+    height: 20px;
+}
 .resize-div,
 .resize-div-min,
 .resize-div-avg,
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/view.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/view.js
index 7c8436aeacf4e17fa5b73fef1a7c73b81b7eb308..ce65086715c0cff157723a58b548aac3df7dfe49 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/view.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/view.js
@@ -6,7 +6,6 @@ import Websocket from 'react-websocket';
 
 // import SplitPane, { Pane }  from 'react-split-pane';
 import { InputSwitch } from 'primereact/inputswitch';
-import { CustomPageSpinner } from '../../components/CustomPageSpinner';
 
 import AppLoader from '../../layout/components/AppLoader';
 import PageHeader from '../../layout/components/PageHeader';
@@ -63,6 +62,7 @@ export class TimelineView extends Component {
             isTaskDetsVisible: false,
             canExtendSUList: true,
             canShrinkSUList: false,
+            isSUListVisible: true,
             selectedItem: null,
             mouseOverItem: null,
             suTaskList:[],
@@ -412,7 +412,7 @@ export class TimelineView extends Component {
         }   else {
             const reservation = _.find(this.reservations, {'id': parseInt(item.id.split("-")[1])});
             const reservStations = reservation.specifications_doc.resources.stations;
-            const reservStationGroups = this.groupSUStations(reservStations);
+            // const reservStationGroups = this.groupSUStations(reservStations);
             item.name = reservation.name;
             item.contact = reservation.specifications_doc.activity.contact
             item.activity_type = reservation.specifications_doc.activity.type;
@@ -872,6 +872,7 @@ export class TimelineView extends Component {
         //  if (this.state.loader) {
         //     return <AppLoader />
         // }
+        const isSUListVisible = this.state.isSUListVisible;
         const isSUDetsVisible = this.state.isSUDetsVisible;
         const isReservDetsVisible = this.state.isReservDetsVisible;
         const isTaskDetsVisible = this.state.isTaskDetsVisible;
@@ -898,8 +899,10 @@ export class TimelineView extends Component {
                 { this.state.isLoading ? <AppLoader /> :
                         <div className="p-grid">
                             {/* SU List Panel */}
-                            <div className={isSUDetsVisible || isReservDetsVisible || isTaskDetsVisible || (canExtendSUList && !canShrinkSUList)?"col-lg-4 col-md-4 col-sm-12":((canExtendSUList && canShrinkSUList)?"col-lg-5 col-md-5 col-sm-12":"col-lg-6 col-md-6 col-sm-12")}
-                                 style={{position: "inherit", borderRight: "5px solid #efefef", paddingTop: "10px"}}>
+                            <div className={isSUListVisible && (isSUDetsVisible || isReservDetsVisible || isTaskDetsVisible || 
+                                            (canExtendSUList && !canShrinkSUList)?"col-lg-4 col-md-4 col-sm-12":
+                                            ((canExtendSUList && canShrinkSUList)?"col-lg-5 col-md-5 col-sm-12":"col-lg-6 col-md-6 col-sm-12"))}
+                                 style={isSUListVisible?{position: "inherit", borderRight: "3px solid #efefef", paddingTop: "10px"}:{display: 'none'}}>
                                 <ViewTable 
                                     viewInNewWindow
                                     data={this.state.suBlueprintList} 
@@ -924,8 +927,14 @@ export class TimelineView extends Component {
                                 />
                             </div>
                             {/* Timeline Panel */}
-                            <div className={isSUDetsVisible || isReservDetsVisible || isTaskDetsVisible || (!canExtendSUList && canShrinkSUList)?"col-lg-5 col-md-5 col-sm-12":((canExtendSUList && canShrinkSUList)?"col-lg-7 col-md-7 col-sm-12":"col-lg-8 col-md-8 col-sm-12")}>
+                            <div className={isSUListVisible?((isSUDetsVisible || isReservDetsVisible)?"col-lg-5 col-md-5 col-sm-12":
+                                                (!canExtendSUList && canShrinkSUList)?"col-lg-6 col-md-6 col-sm-12":
+                                                ((canExtendSUList && canShrinkSUList)?"col-lg-7 col-md-7 col-sm-12":"col-lg-8 col-md-8 col-sm-12")):
+                                                ((isSUDetsVisible || isReservDetsVisible || isTaskDetsVisible)?"col-lg-9 col-md-9 col-sm-12":"col-lg-12 col-md-12 col-sm-12")}
+                                // style={{borderLeft: "3px solid #efefef"}}
+                                >
                                 {/* Panel Resize buttons */}
+                                {isSUListVisible &&
                                 <div className="resize-div">
                                     <button className="p-link resize-btn" disabled={!this.state.canShrinkSUList} 
                                             title="Shrink List/Expand Timeline"
@@ -933,12 +942,28 @@ export class TimelineView extends Component {
                                         <i className="pi pi-step-backward"></i>
                                     </button>
                                     <button className="p-link resize-btn" disabled={!this.state.canExtendSUList} 
-                                            title="Expandd List/Shrink Timeline"
+                                            title="Expand List/Shrink Timeline"
                                             onClick={(e)=> { this.resizeSUList(1)}}>
                                         <i className="pi pi-step-forward"></i>
                                     </button>
                                 </div> 
-                            
+                                }
+                                <div className={isSUListVisible?"resize-div su-visible":"resize-div su-hidden"}>
+                                    {isSUListVisible &&
+                                    <button className="p-link resize-btn" 
+                                            title="Hide List"
+                                            onClick={(e)=> { this.setState({isSUListVisible: false})}}>
+                                        <i className="pi pi-eye-slash"></i>
+                                    </button>
+                                    }
+                                    {!isSUListVisible &&
+                                    <button className="p-link resize-btn"
+                                            title="Show List"
+                                            onClick={(e)=> { this.setState({isSUListVisible: true})}}>
+                                        <i className="pi pi-eye"> Show List</i>
+                                    </button>
+                                    }
+                                </div>
                                 <div className={`timeline-view-toolbar ${this.state.stationView && 'alignTimeLineHeader'}`}>
                                     <div  className="sub-header">
                                         <label >Station View</label>
@@ -1067,7 +1092,7 @@ export class TimelineView extends Component {
                         <div className="col-7">{mouseOverItem.duration}</div>
                     </div>
                 }
-                {(mouseOverItem && mouseOverItem.type == "RESERVATION") &&
+                {(mouseOverItem && mouseOverItem.type === "RESERVATION") &&
                     <div className={`p-grid`} style={{width: '350px', backgroundColor: mouseOverItem.bgColor, color: mouseOverItem.color}}>
                         <h3 className={`col-12`}>Reservation Overview</h3>
                         <hr></hr>
diff --git a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/week.view.js b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/week.view.js
index 08322699a4c79cdcfe50a79e093874b69509c2ad..806991f765090c3dabfbd0c3d744cd7acd618f50 100644
--- a/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/week.view.js
+++ b/SAS/TMSS/frontend/tmss_webapp/src/routes/Timeline/week.view.js
@@ -50,6 +50,7 @@ export class WeekTimelineView extends Component {
             suBlueprintList: [],    // SU Blueprints filtered to view
             group:[],               // Timeline group from scheduling unit draft name
             items:[],               // Timeline items from scheduling unit blueprints grouped by scheduling unit draft
+            isSUListVisible: true,
             isSUDetsVisible: false,
             canExtendSUList: true,
             canShrinkSUList: false,
@@ -332,7 +333,7 @@ export class WeekTimelineView extends Component {
         }   else {
             const reservation = _.find(this.reservations, {'id': parseInt(item.id.split("-")[1])});
             const reservStations = reservation.specifications_doc.resources.stations;
-            const reservStationGroups = this.groupSUStations(reservStations);
+            // const reservStationGroups = this.groupSUStations(reservStations);
             item.name = reservation.name;
             item.contact = reservation.specifications_doc.activity.contact
             item.activity_type = reservation.specifications_doc.activity.type;
@@ -771,6 +772,7 @@ export class WeekTimelineView extends Component {
         if (this.state.redirect) {
             return <Redirect to={ {pathname: this.state.redirect} }></Redirect>
         }
+        const isSUListVisible = this.state.isSUListVisible;
         const isSUDetsVisible = this.state.isSUDetsVisible;
         const isReservDetsVisible = this.state.isReservDetsVisible;
         const canExtendSUList = this.state.canExtendSUList;
@@ -803,8 +805,10 @@ export class WeekTimelineView extends Component {
                         </div> */}
                         <div className="p-grid">
                             {/* SU List Panel */}
-                            <div className={isSUDetsVisible || isReservDetsVisible || (canExtendSUList && !canShrinkSUList)?"col-lg-4 col-md-4 col-sm-12":((canExtendSUList && canShrinkSUList)?"col-lg-5 col-md-5 col-sm-12":"col-lg-6 col-md-6 col-sm-12")}
-                                 style={{position: "inherit", borderRight: "5px solid #efefef", paddingTop: "10px"}}>
+                            <div className={isSUListVisible && (isSUDetsVisible || isReservDetsVisible || 
+                                                (canExtendSUList && !canShrinkSUList)?"col-lg-4 col-md-4 col-sm-12":
+                                                ((canExtendSUList && canShrinkSUList)?"col-lg-5 col-md-5 col-sm-12":"col-lg-6 col-md-6 col-sm-12"))}
+                                 style={isSUListVisible?{position: "inherit", borderRight: "5px solid #efefef", paddingTop: "10px"}:{display: "none"}}>
                                 <ViewTable viewInNewWindow
                                     data={this.state.suBlueprintList} 
                                     defaultcolumns={[{name: "Name",
@@ -822,8 +826,14 @@ export class WeekTimelineView extends Component {
                                 />
                             </div>
                             {/* Timeline Panel */}
-                            <div className={isSUDetsVisible || isReservDetsVisible || (!canExtendSUList && canShrinkSUList)?"col-lg-5 col-md-5 col-sm-12":((canExtendSUList && canShrinkSUList)?"col-lg-7 col-md-7 col-sm-12":"col-lg-8 col-md-8 col-sm-12")}>
+                            <div className={isSUListVisible?((isSUDetsVisible || isReservDetsVisible)?"col-lg-5 col-md-5 col-sm-12": 
+                                                (!canExtendSUList && canShrinkSUList)?"col-lg-6 col-md-6 col-sm-12":
+                                                ((canExtendSUList && canShrinkSUList)?"col-lg-7 col-md-7 col-sm-12":"col-lg-8 col-md-8 col-sm-12")):
+                                                ((isSUDetsVisible || isReservDetsVisible)?"col-lg-9 col-md-9 col-sm-12":"col-lg-12 col-md-12 col-sm-12")}
+                                // style={{borderLeft: "3px solid #efefef"}}
+                                >
                                 {/* Panel Resize buttons */}
+                                {isSUListVisible &&
                                 <div className="resize-div">
                                     <button className="p-link resize-btn" disabled={!this.state.canShrinkSUList} 
                                             title="Shrink List/Expand Timeline"
@@ -835,7 +845,24 @@ export class WeekTimelineView extends Component {
                                             onClick={(e)=> { this.resizeSUList(1)}}>
                                         <i className="pi pi-step-forward"></i>
                                     </button>
-                                </div> 
+                                </div>
+                                }
+                                <div className={isSUListVisible?"resize-div su-visible":"resize-div su-hidden"}>
+                                    {isSUListVisible &&
+                                    <button className="p-link resize-btn" 
+                                            title="Hide List"
+                                            onClick={(e)=> { this.setState({isSUListVisible: false})}}>
+                                        <i className="pi pi-eye-slash"></i>
+                                    </button>
+                                    }
+                                    {!isSUListVisible &&
+                                    <button className="p-link resize-btn"
+                                            title="Show List"
+                                            onClick={(e)=> { this.setState({isSUListVisible: true})}}>
+                                        <i className="pi pi-eye"> Show List</i>
+                                    </button>
+                                    }
+                                </div>
                                 <div className={`timeline-view-toolbar ${this.state.reservationEnabled && 'alignTimeLineHeader'}`}>
                                     <div  className="sub-header">
                                         <label >Show Reservations</label>
@@ -902,7 +929,7 @@ export class WeekTimelineView extends Component {
                 }
                 {/* SU Item Tooltip popover with SU status color */}
                 <OverlayPanel className="timeline-popover" ref={(el) => this.popOver = el} dismissable>
-                {mouseOverItem  && mouseOverItem.type == "SCHEDULE" &&
+                {mouseOverItem  && mouseOverItem.type === "SCHEDULE" &&
                     <div className={`p-grid su-${mouseOverItem.status}`} style={{width: '350px'}}>
                         <label className={`col-5 su-${mouseOverItem.status}-icon`}>Project:</label>
                         <div className="col-7">{mouseOverItem.project}</div>
@@ -924,7 +951,7 @@ export class WeekTimelineView extends Component {
                         <div className="col-7">{mouseOverItem.duration}</div>
                     </div>
                 }
-                {(mouseOverItem && mouseOverItem.type == "RESERVATION") &&
+                {(mouseOverItem && mouseOverItem.type === "RESERVATION") &&
                     <div className={`p-grid`} style={{width: '350px', backgroundColor: mouseOverItem.bgColor, color: mouseOverItem.color}}>
                         <h3 className={`col-12`}>Reservation Overview</h3>
                         <hr></hr>