fields for operator breaks added in batch instance

dream/simulation/Examples/GUI_instances/BatchAllInOneEmpty.json

@@ -126,6 +126,10 @@
       }, 
       "view_operator_shift_spreadsheet": {
         "configuration": {
+			"extend": [
+				"x",
+				"y"
+			],
 			"columns": [
 				{
 				  "format": "date-time", 
@@ -143,8 +147,27 @@
 				{
 				  "name": "Stop", 
 				  "type": "string"
+				},
+				{
+				  "name": "Break1 Start", 
+				  "type": "string"
+				},
+				{
+				  "name": "Break1 Stop", 
+				  "type": "string"
+				},
+				{
+				  "name": "Break2 Start", 
+				  "type": "string"
+				},
+				{
+				  "name": "Break2 Stop", 
+				  "type": "string"
+				}
+			  ],
+			 "handsontable_options": {
+				"minSpareCols": 1
 			 }
-          ]
 		},
 		"gadget": "Input_viewSpreadsheet", 
 		"title": "Product Builder Shifts Spreadsheet", 
@@ -1189,20 +1212,6 @@
         ""
       ]
     ], 
-    "operator_shift_spreadsheet": [
-      [
-        "Date", 
-        "Product Builder", 
-        "Start", 
-        "Stop"
-      ], 
-      [
-        null, 
-        null, 
-        null, 
-        null
-      ]
-    ], 
     "operator_skill_spreadsheet": [
       [
         "Product Builder",