Not sure if this is what you are looking for, but under common is the file logtypes.h you'll find a lot of the following...
Code:
LOG_CATEGORY( CHAT )
LOG_TYPE( CHAT, SAY, DISABLED )
LOG_TYPE( CHAT, EMOTE, DISABLED )
LOG_TYPE( CHAT, OOC, DISABLED )
LOG_TYPE( CHAT, GROUP, DISABLED )
LOG_TYPE( CHAT, GUILD, DISABLED )
LOG_CATEGORY( SPAWNS )
LOG_TYPE( SPAWNS, MAIN, DISABLED )
LOG_TYPE( SPAWNS, CONDITIONS, DISABLED )
LOG_TYPE( SPAWNS, LIMITS, DISABLED )
LOG_CATEGORY( AI )
LOG_TYPE( AI, WAYPOINTS, DISABLED )
LOG_TYPE( AI, BUFFS, DISABLED )
LOG_TYPE( AI, SPELLS, DISABLED )
LOG_CATEGORY( QUESTS )
LOG_TYPE( QUESTS, PATHING, DISABLED )
Look thru and change DISBABLED to ENABLED on the ones you feel you need.