Jeep/Mopar guide

Hey guys, Im mainly a GM user when it comes to HPTuners and have read some of the Mopar PCMs are a little different in the logic of making adjustments. Is there anywhere that kinda has a guide on how the Mopars use different tables or something like that so I kinda have an idea on where to start? Might save me some time and headache as I have 0 experience with anything other than GM.

Or is what I read wrong and its pretty well the same?

vehicle in question is a 3.6 Grand Cherokee.

Thanks gents,
Jarred

(mods, if this is in the wrong section, I apologize please move it.)