Add Column to SAP Learning (LMS) Report

I'm looking for a method to add columns to our out-of-the-box SAP LMS reports. For example, the OOTB reports don't allow us to filter for curriculum completion by business unit, division, or department, and we need to be able to do all 3. I'd ideally like to not be running VLOOKUP's for these functions. I've downloaded Plateau Report Designer (PRD) but there seems to be very little in the way of documentation concerning it.

Literally all I want to do is add a column or two, and I likely want to do it again and again. Can anyone help?