example of defining operation types in a more straightforward type

dream/simulation/Examples/DefaultAllInOneEmpty2.json

@@ -314,25 +314,14 @@
         ]
       },
       "_operationType": {
-        "_class": "Dream.PropertyList",
-        "name": "Operation type",
-        "id": "operationType",
         "description": "the type of operations that are performed manually in the machine",
-        "properties": {
-          "operationType": {
+        "default": "Automatic",
         "type": "string",
-            "enum": [
-              "Load",
-              "Setup",
-              "Processing",
-              "MT-Load",
-              "MT-Load-Setup",
-              "MT-Load-Setup-Processing",
-              "MT-Setup-Processing"
+        "enum" : [
+          "Automatic",
+          "Manual"
         ]
       }
-        }
-      }
     },
     "edge": {
       "description": "Base definition for edge",
@@ -479,6 +468,26 @@
               "default": "M",
               "required": true
             },
+            "loadType": {
+              "$ref": "#/definitions/_operationType",
+              "required": true
+            },
+            "setupType": {
+              "$ref": "#/definitions/_operationType",
+              "required": true
+            },
+            "processingType": {
+              "$ref": "#/definitions/_operationType",
+              "required": true
+            },
+            "loadTime": {
+              "$ref": "#/definitions/_dist",
+              "required": true
+            },
+            "setupTime": {
+              "$ref": "#/definitions/_dist",
+              "required": true
+            },
             "processingTime": {
               "$ref": "#/definitions/_dist",
               "required": true