Custom Class Creation - FGU

Hello there everyone,

I'm trying to make some custom classes for my homebrew games based upon a bunch of 3.5E content (i.e. Complete Adventurer's Scout/Ninja and a wide range of Prestige Classes for Archetypes), but I can't figure out how to create class Features, which automatically apply to the character sheet. Also, the "Other" tab on the class window no longer appears like it did in FGC, so I don't know how to apply the hit dice, proficiencies, etc.

If anyone could provide some guidance in this area, I would greatly appreciate it.

I know you mentioned it's based on 3.5e content, but are these classed being setup in 3.5e as well?