I'd report to JIRA, but it doesn't seem to allow filling without an account.
* Load PCGen v6.06.00 RC1 in Pathfinder Mode (Data loaded: Pathfinder RPG Core Supplements, Rise of the Runelords Player's Guide (Anniversary Edition).
* Create a new character (Type: PC/NPC doesn't matter).
* Race: Whichever, or blank, doesn't seem to matter.
* Add a level or more of a PC class. (Example: Ranger; but randomly selecting various cause it.)
* Add a level or more of a different PC class. (Example: Rogue; but randomly selecting various cause it.)
* Notice "Things to be done" has added the abilities meant for Monster-advancement-with-PC-class abilities: Class Level [+2/+4/-2] Ability Adjustment