Regarding software to use for i1pro 2 with new Mac Pro

To start you’ll need to pick a curve that is for a paper that is similar to Canon Pro Platinum. Since this is a glossy paper you definitely need to start with a curve that is also for a glossy paper because you want the Photo Black (PK) and Gloss Optimizer (GO).

I’m not familiar with Canon Pro Platinum paper but this thread discusses Creating a brand new curve for a paper not listed and might give you some ideas on where to start.