diff --git a/selling/doctype/sales_common/sales_common.js b/selling/doctype/sales_common/sales_common.js
index e59a747..b3ae0fe 100644
--- a/selling/doctype/sales_common/sales_common.js
+++ b/selling/doctype/sales_common/sales_common.js
@@ -29,6 +29,7 @@
 		this._super();
 		this.toggle_rounded_total();
 		this.setup_queries();
+		this.toggle_editable_price_list_rate();
 	},
 	
 	setup_queries: function() {
@@ -317,6 +318,15 @@
 		}
 	},
 	
+	toggle_editable_price_list_rate: function() {
+		var df = wn.meta.get_docfield(this.tname, "ref_rate", this.frm.doc.name);
+		var editable_price_list_rate = cint(wn.defaults.get_default("editable_price_list_rate"));
+		
+		if(df && editable_price_list_rate) {
+			df.read_only = 0;
+		}
+	},
+	
 	calculate_taxes_and_totals: function() {
 		this._super();
 		this.calculate_total_advance("Sales Invoice", "advance_adjustment_details");
diff --git a/selling/doctype/selling_settings/selling_settings.py b/selling/doctype/selling_settings/selling_settings.py
index febf375..b25e987 100644
--- a/selling/doctype/selling_settings/selling_settings.py
+++ b/selling/doctype/selling_settings/selling_settings.py
@@ -8,5 +8,6 @@
 		self.doc, self.doclist = d, dl
 		
 	def validate(self):
-		for key in ["cust_master_name", "customer_group", "territory", "maintain_same_sales_rate"]:
-			webnotes.conn.set_default(key, self.doc.fields.get(key, ""))
+		for key in ["cust_master_name", "customer_group", "territory", "maintain_same_sales_rate",
+			"editable_price_list_rate"]:
+				webnotes.conn.set_default(key, self.doc.fields.get(key, ""))
diff --git a/selling/doctype/selling_settings/selling_settings.txt b/selling/doctype/selling_settings/selling_settings.txt
index 934cd41..97a339a 100644
--- a/selling/doctype/selling_settings/selling_settings.txt
+++ b/selling/doctype/selling_settings/selling_settings.txt
@@ -2,7 +2,7 @@
  {
   "creation": "2013-06-25 10:25:16", 
   "docstatus": 0, 
-  "modified": "2013-07-18 12:03:39", 
+  "modified": "2013-08-02 12:09:20", 
   "modified_by": "Administrator", 
   "owner": "Administrator"
  }, 
@@ -95,6 +95,12 @@
   "label": "Maintain Same Rate Throughout Sales Cycle"
  }, 
  {
+  "doctype": "DocField", 
+  "fieldname": "editable_price_list_rate", 
+  "fieldtype": "Check", 
+  "label": "Allow user to edit Price List Rate in transactions"
+ }, 
+ {
   "doctype": "DocPerm"
  }
 ]
\ No newline at end of file