diff --git a/adapter/0.2.8.json b/adapter/0.2.8.json
new file mode 100644
index 00000000..000a685c
--- /dev/null
+++ b/adapter/0.2.8.json
@@ -0,0 +1,58 @@
+/**
+ * Copyright © 2016-2018 by IntegrIT S.A. dba Hackolade.  All rights reserved.
+ *
+ * The copyright to the computer software herein is the property of IntegrIT S.A.
+ * The software may be used and/or copied only with the written permission of
+ * IntegrIT S.A. or in accordance with the terms and conditions stipulated in
+ * the agreement/contract under which the software has been supplied.
+ *
+ * {
+ * 		"add": {
+ * 			"entity": [<names of new property>],
+ * 			"container": [<names of new property>],
+ * 			"model": [<names of new property>],
+ * 			"view": [<names of new property>],
+ *			"field": {
+ *				"<type>": [<names of new property>]
+ *			}
+ * 		},
+ * 		"delete": {
+ * 			"entity": [<names of new property>],
+ * 			"container": [<names of new property>],
+ * 			"model": [<names of new property>],
+ * 			"view": [<names of new property>],
+ *			"field": {
+ *				"<type>": [<names of new property>]
+ *			}
+ * 		},
+ * 		"modify": {
+ *	 		"entity": [
+ *	 			{
+ *					"from": { <properties that identify record> },
+ *					"to": { <properties that need to be changed> }
+ *				}
+ *			],
+ *			"container": [],
+ *			"model": [],
+ *			"view": [],
+ *			"field": []
+ * 		},
+ * }
+ */
+{
+	"add": {},
+	"modify": {
+		"field": [
+			{
+				"from": {
+					"primaryKey": true,
+					"unique": true
+				},
+				"to": {
+					"unique": false
+				}
+			}
+		]
+	},
+	"delete": {}
+}
diff --git a/properties_pane/field_level/fieldLevelConfig.json b/properties_pane/field_level/fieldLevelConfig.json
index a643d1bd..62dbd258 100644
--- a/properties_pane/field_level/fieldLevelConfig.json
+++ b/properties_pane/field_level/fieldLevelConfig.json
@@ -291,6 +291,13 @@ making sure that you maintain a proper JSON format.
 									"exist": false
 								}
 							]
+						},
+						{
+							"type": "not",
+							"values": {
+								"key": "unique",
+								"value": true
+							}
 						}
 					]
 				}
@@ -391,12 +398,21 @@ making sure that you maintain a proper JSON format.
 							"type": "or",
 							"values": [
 								{
-									"key": "compositePrimaryKey",
-									"value": false
+									"type": "or",
+									"values": [
+										{
+											"key": "primaryKey",
+											"value": false
+										},
+										{
+											"key": "primaryKey",
+											"exist": false
+										}
+									]
 								},
 								{
 									"key": "compositePrimaryKey",
-									"exist": false
+									"value": true
 								}
 							]
 						},
@@ -686,6 +702,13 @@ making sure that you maintain a proper JSON format.
 									"exist": false
 								}
 							]
+						},
+						{
+							"type": "not",
+							"values": {
+								"key": "unique",
+								"value": true
+							}
 						}
 					]
 				}
@@ -712,12 +735,21 @@ making sure that you maintain a proper JSON format.
 							"type": "or",
 							"values": [
 								{
-									"key": "compositePrimaryKey",
-									"value": false
+									"type": "or",
+									"values": [
+										{
+											"key": "primaryKey",
+											"value": false
+										},
+										{
+											"key": "primaryKey",
+											"exist": false
+										}
+									]
 								},
 								{
 									"key": "compositePrimaryKey",
-									"exist": false
+									"value": true
 								}
 							]
 						},
@@ -1161,6 +1193,13 @@ making sure that you maintain a proper JSON format.
 									"exist": false
 								}
 							]
+						},
+						{
+							"type": "not",
+							"values": {
+								"key": "unique",
+								"value": true
+							}
 						}
 					]
 				}
@@ -1187,12 +1226,21 @@ making sure that you maintain a proper JSON format.
 							"type": "or",
 							"values": [
 								{
-									"key": "compositePrimaryKey",
-									"value": false
+									"type": "or",
+									"values": [
+										{
+											"key": "primaryKey",
+											"value": false
+										},
+										{
+											"key": "primaryKey",
+											"exist": false
+										}
+									]
 								},
 								{
 									"key": "compositePrimaryKey",
-									"exist": false
+									"value": true
 								}
 							]
 						},
@@ -1464,6 +1512,13 @@ making sure that you maintain a proper JSON format.
 									"exist": false
 								}
 							]
+						},
+						{
+							"type": "not",
+							"values": {
+								"key": "unique",
+								"value": true
+							}
 						}
 					]
 				}
@@ -1490,12 +1545,21 @@ making sure that you maintain a proper JSON format.
 							"type": "or",
 							"values": [
 								{
-									"key": "compositePrimaryKey",
-									"value": false
+									"type": "or",
+									"values": [
+										{
+											"key": "primaryKey",
+											"value": false
+										},
+										{
+											"key": "primaryKey",
+											"exist": false
+										}
+									]
 								},
 								{
 									"key": "compositePrimaryKey",
-									"exist": false
+									"value": true
 								}
 							]
 						},
@@ -1750,6 +1814,13 @@ making sure that you maintain a proper JSON format.
 									"exist": false
 								}
 							]
+						},
+						{
+							"type": "not",
+							"values": {
+								"key": "unique",
+								"value": true
+							}
 						}
 					]
 				}
@@ -1776,12 +1847,21 @@ making sure that you maintain a proper JSON format.
 							"type": "or",
 							"values": [
 								{
-									"key": "compositePrimaryKey",
-									"value": false
+									"type": "or",
+									"values": [
+										{
+											"key": "primaryKey",
+											"value": false
+										},
+										{
+											"key": "primaryKey",
+											"exist": false
+										}
+									]
 								},
 								{
 									"key": "compositePrimaryKey",
-									"exist": false
+									"value": true
 								}
 							]
 						},
@@ -2035,6 +2115,13 @@ making sure that you maintain a proper JSON format.
 									"exist": false
 								}
 							]
+						},
+						{
+							"type": "not",
+							"values": {
+								"key": "unique",
+								"value": true
+							}
 						}
 					]
 				}
@@ -2061,12 +2148,21 @@ making sure that you maintain a proper JSON format.
 							"type": "or",
 							"values": [
 								{
-									"key": "compositePrimaryKey",
-									"value": false
+									"type": "or",
+									"values": [
+										{
+											"key": "primaryKey",
+											"value": false
+										},
+										{
+											"key": "primaryKey",
+											"exist": false
+										}
+									]
 								},
 								{
 									"key": "compositePrimaryKey",
-									"exist": false
+									"value": true
 								}
 							]
 						},
@@ -2340,6 +2436,13 @@ making sure that you maintain a proper JSON format.
 									"exist": false
 								}
 							]
+						},
+						{
+							"type": "not",
+							"values": {
+								"key": "unique",
+								"value": true
+							}
 						}
 					]
 				}
@@ -2366,12 +2469,21 @@ making sure that you maintain a proper JSON format.
 							"type": "or",
 							"values": [
 								{
-									"key": "compositePrimaryKey",
-									"value": false
+									"type": "or",
+									"values": [
+										{
+											"key": "primaryKey",
+											"value": false
+										},
+										{
+											"key": "primaryKey",
+											"exist": false
+										}
+									]
 								},
 								{
 									"key": "compositePrimaryKey",
-									"exist": false
+									"value": true
 								}
 							]
 						},
@@ -2666,6 +2778,13 @@ making sure that you maintain a proper JSON format.
 									"exist": false
 								}
 							]
+						},
+						{
+							"type": "not",
+							"values": {
+								"key": "unique",
+								"value": true
+							}
 						}
 					]
 				}
@@ -2692,12 +2811,21 @@ making sure that you maintain a proper JSON format.
 							"type": "or",
 							"values": [
 								{
-									"key": "compositePrimaryKey",
-									"value": false
+									"type": "or",
+									"values": [
+										{
+											"key": "primaryKey",
+											"value": false
+										},
+										{
+											"key": "primaryKey",
+											"exist": false
+										}
+									]
 								},
 								{
 									"key": "compositePrimaryKey",
-									"exist": false
+									"value": true
 								}
 							]
 						},
@@ -2949,6 +3077,13 @@ making sure that you maintain a proper JSON format.
 									"exist": false
 								}
 							]
+						},
+						{
+							"type": "not",
+							"values": {
+								"key": "unique",
+								"value": true
+							}
 						}
 					]
 				}
@@ -2975,12 +3110,21 @@ making sure that you maintain a proper JSON format.
 							"type": "or",
 							"values": [
 								{
-									"key": "compositePrimaryKey",
-									"value": false
+									"type": "or",
+									"values": [
+										{
+											"key": "primaryKey",
+											"value": false
+										},
+										{
+											"key": "primaryKey",
+											"exist": false
+										}
+									]
 								},
 								{
 									"key": "compositePrimaryKey",
-									"exist": false
+									"value": true
 								}
 							]
 						},
@@ -3264,6 +3408,13 @@ making sure that you maintain a proper JSON format.
 									"exist": false
 								}
 							]
+						},
+						{
+							"type": "not",
+							"values": {
+								"key": "unique",
+								"value": true
+							}
 						}
 					]
 				}
@@ -3290,12 +3441,21 @@ making sure that you maintain a proper JSON format.
 							"type": "or",
 							"values": [
 								{
-									"key": "compositePrimaryKey",
-									"value": false
+									"type": "or",
+									"values": [
+										{
+											"key": "primaryKey",
+											"value": false
+										},
+										{
+											"key": "primaryKey",
+											"exist": false
+										}
+									]
 								},
 								{
 									"key": "compositePrimaryKey",
-									"exist": false
+									"value": true
 								}
 							]
 						},