Can't find STool limit command

I recently downloaded the awesome mountable turret STool, but I’m having a problem. I’m trying to use it in a LAN game, but the turret limit is at zero, and I can’t find the command to increase it. What do I do? Can the command be found in the lua files?

sbox_maxmountable_turrets

Nope. I already tried that. Doesn’t work. It has a custom command, but I don’t know how to find it.

By the looks of the code, it doesn’t have a custom command.