diff --git a/SAS/TMSS/backend/src/tmss/tmssapp/schemas/subtask_template-observation-1.json b/SAS/TMSS/backend/src/tmss/tmssapp/schemas/subtask_template-observation-1.json
index fbf82d5c3878a8fd5cbe8cc8dd0f2319825d89cd..ba029e1be5af945463d1e50cc3f7d27a2290e1d8 100644
--- a/SAS/TMSS/backend/src/tmss/tmssapp/schemas/subtask_template-observation-1.json
+++ b/SAS/TMSS/backend/src/tmss/tmssapp/schemas/subtask_template-observation-1.json
@@ -178,6 +178,7 @@
                             "title": "Tied-Array Beam",
                             "headerTemplate": "TAB {{ self.index }}",
                             "additonalProperties": false,
+                            "default": {},
                             "properties": {
                               "coherent": {
                                 "type": "boolean",
@@ -214,7 +215,7 @@
                       },
                       "required":[
                         "name",
-                      "tabs"
+                        "tabs"
                       ]
                     },
                     "minItems": 1
@@ -227,7 +228,8 @@
                   }
                 },
                 "required": [
-                  "SAPs"
+                  "SAPs",
+                  "stations"
                 ]
               }
             },
@@ -242,6 +244,7 @@
                 "headerTemplate": "Pipeline {{ self.index }}",
                 "title": "Fly's Eye Pipeline",
                 "additionalProperties": false,
+                "required": ["coherent", "stations"],
                 "properties": {
                   "coherent": {
                     "title": "Coherent Stokes Settings",