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"
             },
             {
-              "col1": "Static value"
+              "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"
             }
           ]
         }, 

dream/simulation/Examples/GUI_models/BatchFullModel.json

@@ -293,25 +293,32 @@
 				"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"
 					},
 					{
-						  "col1": "Static value"
+					  "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"
 					}
 				  ]
 				}, 

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",