Make a lemonui Menu Mod
I want to make a lemonui mod So I can make a simple mod of spawning vehicles npcs god mode or more!
how to make? source code? or create it using a code?
Unfortunately LemonUI doesn't do any of the things you mention other than allow you to create a menu.
That's why 99% of users use Trainers do spawn, teleport, and customize.
If however you want to create your own functional menu, and I would encourage you to do so, you will need to learn how to Script.
Documentation for LemonUI: