as of 6.06.00, I'm invited to extend the Humanoid Race Type, with a Humanoid Subrace (hurrah!)
However, the chooser is limited to the 5 in the Core rules (Dwarf, Elf, Gnome, Halfling, Human)
it only allows one choice, so I can't code Half-Elf (=Elf + Human)
I can't code Half-Orc (=Orc + Human, as I don't get Orc at all)
I can't code any of the other Humanoid sub-types, not even the ones in the ARG itself. Apart from Drow & the Outsider(Native), all the Common Races have new Humanoid subtypes.
some of the missing sub-types are significant (Aquatic for Gill-men, and Shapechanger for Kitsune (another double sub-type))
One solution is to extend the list in the coded Data files, to cover all the ARG. But then you end up playing catch-up with the subsequent Blood Of XX and Bestiary books.
As and when we get Innser Sea Races, that collects a larger number of races from a number of other supplements.
An alternative is to allow an editable field for Subrace, so we can enter known ones, and new unknown ones for new races.
Pathfinder Core Supplements inc. ARG
Experimental race builder is experimental.
I do not like trying to play catch up. I will re-evaluate the builder at the tail end of the conversion and see what capabilities are possible then.