What are the config files?
All config files are located in "addons/sourcemod/configs/presents/"
effects.cfg
Lets you enable or disable individual effects (e.g. Dance Fever). These use the internal names for effects which should remain constant.
maps.cfg
Lets you specify what maps to enable/disable random present drops on (e.g. 2fort). Also allows you to specify a specific drop chance for each map and enable/disable individual effects.