The current version of Mod Menu is available on gta5-mods.com

https://www.gta5-mods.com/scripts/mod-menu-no-more-hotkeys

No more fiddling with key conflicts or hard coding configuration files.

Mod Menu dynamically loads compatible mods and allows the user to launch them from a graphical interface. Mod authors need only follow the simple example in the included text file to make their mod work with MM.

Being that MM cannot load itself, it binds to, Launch: NP '-' or regular '-', Up: NP8 or i, Left: NP4 or j, Down: NP2 or k, Right: NP6 or l, Select: NP5 or Enter, Back: NP0 or backspace.

MM requires Scripthook. The download includes a compatible version of Alexander Blade's Native Trainer that does not bind to F4, so that you can see it in action.