Help! create paid lgl menu mod

[power2020202020]

Hi guys, I know how to make a mod menu but my mod menu is free I wanted to know how to make a paid mod menu so I only want certain people to have access besides me, example mod menu with serial number or password

 

[bkR57]

by paid you mean protected ?
Just define a password and load the mod menu after asking and checking for it ?

 

[fybr123]

by paid you mean protected ?
Just define a password and load the mod menu after asking and checking for it ?

How to make mod menu please