correct configuration for the spreadsheet of ACO attrs

dream/simulation/Examples/GUI_instances/BatchAllInOneEmpty.json

@@ -209,25 +209,32 @@
         "configuration": {
           "columns": [
             {
-              "col1": "", 
-              "col2": "Obj1: Max number of assigned PB", 
-              "col3": "Obj2: Assignment to machines with higher WIP", 
-              "col4": "Obj3: Min assignment variations", 
-              "col5": "Obj4: Uniform assignment across stations", 
-              "col6": "Obj5: Machines with furthest last assignment time", 
-              "col7": "Obj6: Fill sub-line"
-            }, 
+              "name": "",
+              "type": "string"
+            },
             {
-              "col1": "Min value"
-            }, 
+              "name": "Obj1: Max number of assigned PB",
+              "type": "string"
+            },
             {
-              "col1": "Max value"
-            }, 
+              "name": "Obj2: Assignment to machines with higher WIP",
+              "type": "string"
+            },
             {
-              "col1": "Step"
-            }, 
+              "name": "Obj3: Min assignment variations",
+              "type": "string"
+            },
+            {
+              "name": "Obj4: Uniform assignment across stations",
+              "type": "string"
+            },
             {
-              "col1": "Static value"
+              "name": "Obj5: Machines with furthest last assignment time",
+              "type": "string"
+            },
+            {
+              "name": "Obj6: Fill sub-line",
+              "type": "string"
             }
           ]
         }, 

dream/simulation/Examples/GUI_models/BatchFullModel.json

@@ -289,36 +289,43 @@
                     "type": "object_view", 
                     "title": "Run Simulation"
                }, 
-			    "view_ACO_weights_spreadsheet": {
-					"configuration": {
-					  "columns": [
-						{
-						  "col1": "", 
-						  "col2": "Obj1: Max number of assigned PB", 
-						  "col3": "Obj2: Assignment to machines with higher WIP", 
-						  "col4": "Obj3: Min assignment variations", 
-						  "col5": "Obj4: Uniform assignment across stations", 
-						  "col6": "Obj5: Machines with furthest last assignment time", 
-						  "col7": "Obj6: Fill sub-line"
-						}, 
-						{
-						  "col1": "Min value"
-						}, 
-						{
-						  "col1": "Max value"
-						}, 
-						{
-						  "col1": "Step"
-						}, 
-						{
-						  "col1": "Static value"
-						}
-					  ]
-					}, 
-					"gadget": "Input_viewSpreadsheet", 
-					"title": "Optimization Weights", 
-					"type": "object_view"
-				  },
+			"view_ACO_weights_spreadsheet": {
+				"configuration": {
+				  "columns": [
+					{
+					  "name": "",
+					  "type": "string"
+					},
+					{
+					  "name": "Obj1: Max number of assigned PB",
+					  "type": "string"
+					},
+					{
+					  "name": "Obj2: Assignment to machines with higher WIP",
+					  "type": "string"
+					},
+					{
+					  "name": "Obj3: Min assignment variations",
+					  "type": "string"
+					},
+					{
+					  "name": "Obj4: Uniform assignment across stations",
+					  "type": "string"
+					},
+					{
+					  "name": "Obj5: Machines with furthest last assignment time",
+					  "type": "string"
+					},
+					{
+					  "name": "Obj6: Fill sub-line",
+					  "type": "string"
+					}
+				  ]
+				}, 
+				"gadget": "Input_viewSpreadsheet", 
+				"title": "Optimization Weights", 
+				"type": "object_view"
+			  }, 			   
                "view_result": {
                     "gadget": "Input_viewResultList", 
                     "type": "object_view", 

dream/simulation/Examples/GUI_models/BatchFullModelOperatorsACO.json

@@ -95,7 +95,36 @@
       }, 
       "view_ACO_weights_spreadsheet": {
         "configuration": {
-          "columns": []
+          "columns": [
+            {
+              "name": "",
+              "type": "string"
+            },
+            {
+              "name": "Obj1: Max number of assigned PB",
+              "type": "string"
+            },
+            {
+              "name": "Obj2: Assignment to machines with higher WIP",
+              "type": "string"
+            },
+            {
+              "name": "Obj3: Min assignment variations",
+              "type": "string"
+            },
+            {
+              "name": "Obj4: Uniform assignment across stations",
+              "type": "string"
+            },
+            {
+              "name": "Obj5: Machines with furthest last assignment time",
+              "type": "string"
+            },
+            {
+              "name": "Obj6: Fill sub-line",
+              "type": "string"
+            }
+          ]
         }, 
         "gadget": "Input_viewSpreadsheet", 
         "title": "Optimization Weights",