License Keys Woocoomerce/Wordpress with Voucher-Function

Goal Front-End:
The customer should be able to pick up his Digital Goods with a coupon code. To do this, he goes to a landing page where he enters his code, his name and his e-mail address. If the code is valid, he will receive an activation key, instructions and a download link. If the code is not valid, he get Error-Msg about.

Goal Back-End:

- add a license to an existing WooCommerce product
+ Choose Produkt Name from Drop-Down (get from WooCommerce Products)
+ License Code (enter manual)
+ Activation Limit (e.g. 50 than Key has 50 from 50 Activations open)
+ Download-Link
+ Instructions
+ Overview-Table (Edit, Save, Delete)
+ CSV Import/Export
+ Notification in Admin, if Product have no more Keys left

- create a voucher code for this product
+ Add New manual / generate (Product, Variation, Number of codes, Redeemable (how often can be use), Number of License Keys, Expiry Date)
+ CSV Import/Export
+ Overview-Table (Edit, Save, Delete)
+ Voucher Codes Logs (Overview with Product, Voucher-Code, Product-Variation, Redeemed (yes/no), Times, Name, E-mail)

- reedem voucher and get (activation key, instructions and a download link)
+ ShortCode for Landing Page
+ If a license code is delivered, its activation limit is reduced.