EA licensing system

I want the license System to manage EA licenses. Able to login (website webflow) or software where i can add and delete licenses for an EA. The EA will need the license as a parameter, only then with a valid  license it will be possible to trade. The license system will check if the license is valid.

it should work on mt4 for EAs or Indicators

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

Enable or disable backtesting

Also providing a clear example How to set up code if needed inside EA or Indi