License Management System

I need Protection and License Management System for my EA which are in mt4

need following features :

Server protection (Licenses Management):

You can add / remove / edit clients and products very easy.

The client can change the Metatrader account number(s) from his own client's page.

You can change the MQL project variables from the server (for example: Takeprofit – Stopples – MovingAveragePeriod)

You can stop (disable/enable) the MQL project from server (For example to update)

You can set a trial period for every client and product.

You can choose one of 4 types of licenses: One metatrader account - Multi metatrader accounts (up to 10) - Unlimited metatrader accounts - PC code.

if you have better solution please let me know ..