Is posible to have the same key for different licenses BY THE FRONT? or even can I create a license with an specific key?
Yes, different licenses can have same key, provided they belong to different products.
To set a custom key, you need to use the web api to generate the key and pass the key field along with the value you want to set.
Ok thanks. Are you planning to add this functionality on the front end web page? or this is something really corner case for you
Our license creation dialog is already very complex. Will see if I can get this added.