Anyone know how i can make a custom command

[thesrb2fan12]

i have been wondering how i can do this it could help me with some more config options for my mod

 

[amperbee]

Lua/Functions - SRB2 Wiki

wiki.srb2.org

You can make a command with the COM_AddCommand function.
Though if the command is for mod configuration, you might be interested in console variables - also called CVars.
You can use CV_RegisterVar to make them.