About this Plugin
As we started this plugin to provide more flexible to the shop owner can able to apply coupons in the order instead of editing each line items to offer some discount which is hard to customize each line item, there is no way to apply coupon on order manually.
More people requested this plugin behaviour earlier in WooThemes Ideas
http://bit.ly/1sfXrwF
So we thought to build this as a plugin and hence here it is 
Features
- Flexible to add Coupons in Order Manually
- Coupon Inventory Management -Update Usage Count of Coupon
- Discount partitioned for each Line Items
- Easy to apply Coupons from Phone Order
- Simple, Effective and Easy to Use
- Works from WooCommerce 2.3.x+
- Support Cart Discount and Cart Percentage Discount of Coupon Type
- Optimized Coupon Search
- and more
Our Plugin Demonstration
Changelog
Version 1.0 on 10th May 2016 - Initial Release