Pro drums are as easy as putting another note in the pro marker “row” whenever the note should be a pad and not a cymbal. If you need a visual example, grab the Contribution Guide for RBHP, because it discusses charting pro drums upgrades (it’s really easy).
You are about to leave Rhythm Gaming World and access the external songs DB. While no song or file sold for commercially available videogames is hosted there and only fan generated content is allowed, Rhythm Gaming World has no direct control over the database and no files are hosted here. Alright, we had to made you aware of this, now you can visit the database!