Mazak VCN 5X-20k 5 axis noob questions

So a 3 axis fanuc machinist buys a Mazak VCN 5X 20k machine, with matrix 2 control, confusion ensues. I've been trying to teach myself how this machine works, I have 3 axis stuff working fine, however I am having trouble with 5 axis stuff. Typically when I set up a part I need to touch off x,y, and z, then post code, load tools, check clearances and hit run. For 5 axis I think I need more offsets, however I'm not sure how to touch off G54.2 or G54.4 or even which one to use?


Thanks