you can make quotation from supplier quotation

erpnext/buying/doctype/supplier_quotation/supplier_quotation.js

@@ -11,6 +11,9 @@ erpnext.buying.SupplierQuotationController = erpnext.buying.BuyingController.ext
 			cur_frm.add_custom_button(__("Purchase Order"), this.make_purchase_order,
 				__("Make"));
 			cur_frm.page.set_inner_btn_group_as_primary(__("Make"));
+			cur_frm.add_custom_button(__("Quotation"), this.make_quotation,
+				__("Make"));
+
 		}
 		else if (this.frm.doc.docstatus===0) {
 			cur_frm.add_custom_button(__('Material Request'),
@@ -35,6 +38,13 @@ erpnext.buying.SupplierQuotationController = erpnext.buying.BuyingController.ext
 			method: "erpnext.buying.doctype.supplier_quotation.supplier_quotation.make_purchase_order",
 			frm: cur_frm
 		})
+	},
+	make_quotation: function() {
+		frappe.model.open_mapped_doc({
+			method: "erpnext.buying.doctype.supplier_quotation.supplier_quotation.make_quotation",
+			frm: cur_frm
+		})
+
 	}
 });
 

erpnext/buying/doctype/supplier_quotation/supplier_quotation.py

@@ -97,8 +97,29 @@ def make_purchase_order(source_name, target_doc=None):
 		},
 		"Purchase Taxes and Charges": {
 			"doctype": "Purchase Taxes and Charges",
-			"add_if_empty": True
 		},
 	}, target_doc, set_missing_values)
 
 	return doclist
+
+@frappe.whitelist()
+def make_quotation(source_name, target_doc=None):
+	def set_missing_values(source, target):
+		quotation = frappe.get_doc(target)
+
+	doclist = get_mapped_doc("Supplier Quotation", source_name, {
+		"Supplier Quotation": {
+			"doctype": "Quotation",
+			"field_map": {
+				"name": "supplier_quotation",
+			}
+		},
+		"Supplier Quotation Item": {
+			"doctype": "Quotation Item",
+			"condition": lambda doc: frappe.db.get_value("Item", doc.item_code, "is_sales_item")==1,
+			"add_if_empty": True
+		}
+	}, target_doc, set_missing_values)
+
+	return doclist
+

erpnext/buying/doctype/supplier_quotation/supplier_quotation_dashboard.py

@@ -11,11 +11,12 @@ def get_data():
 		'transactions': [
 			{
 				'label': _('Related'),
-				'items': ['Purchase Order']
+				'items': ['Purchase Order', 'Quotation']
 			},
 			{
 				'label': _('Reference'),
 				'items': ['Material Request', 'Request for Quotation', 'Project']
 			},
 		]
+
 	}

erpnext/selling/doctype/quotation/quotation.json

@@ -2336,6 +2336,35 @@
    "search_index": 0, 
    "set_only_once": 0, 
    "unique": 0
+  }, 
+  {
+   "allow_on_submit": 0, 
+   "bold": 0, 
+   "collapsible": 0, 
+   "columns": 0, 
+   "fieldname": "supplier_quotation", 
+   "fieldtype": "Link", 
+   "hidden": 0, 
+   "ignore_user_permissions": 0, 
+   "ignore_xss_filter": 0, 
+   "in_filter": 0, 
+   "in_list_view": 0, 
+   "in_standard_filter": 0, 
+   "label": "Supplier Quotation", 
+   "length": 0, 
+   "no_copy": 0, 
+   "options": "Supplier Quotation", 
+   "permlevel": 0, 
+   "precision": "", 
+   "print_hide": 0, 
+   "print_hide_if_no_value": 0, 
+   "read_only": 0, 
+   "remember_last_selected_value": 0, 
+   "report_hide": 0, 
+   "reqd": 0, 
+   "search_index": 0, 
+   "set_only_once": 0, 
+   "unique": 0
   }
  ], 
  "hide_heading": 0, 
@@ -2350,7 +2379,7 @@
  "istable": 0, 
  "max_attachments": 1, 
  "menu_index": 0, 
- "modified": "2016-11-07 05:58:07.587479", 
+ "modified": "2017-01-04 06:28:07.269867", 
  "modified_by": "Administrator", 
  "module": "Selling", 
  "name": "Quotation", 
@@ -2537,5 +2566,6 @@
  "sort_order": "DESC", 
  "timeline_field": "customer", 
  "title_field": "title", 
+ "track_changes": 0, 
  "track_seen": 0
 }