Off the top of my head whilst away from the pc so please forgive any errors!
When your ini is set up for example on a monk with:
PullingSkill=Distant Strike
PullSkillDistance=300
PullingDistance=500
MaxNavPathDistance=500
PrePullIf=1
PullingFilter=1
Then in game
/bot dopulls=1
Set your puller in group and off it goes.
Of course adjust settings as needed, for example PrePullIf can be set to check group for missing members or low mana etc etc. Pulling Filter can be specific mobs/types/targets etc. And distances can be adapted to your needs