I'm trying to give all my players a free feat through a wonderous item, however I'm trying to include some of my hombrewed feats. When I add a modifier, add feat to the item, the only feats that appear are the ones I own from my books, no hombrew. Is there any way to accomplish what I am attempting to do?

If you could put the features in a homebrew feat you should be able to put them on a homebrew item. A bit of a workaround.

That's what I tried, I made a Homebrew feat, and a Homebrew item, added a feat to the Homebrew item, but the only options that appear are the official feats, not my hombrewed

I mean instead of adding the feat add its properties. If the feat gives a bonus to melee. Have the item give a bonus to melee.

Oh I see what you are saying now! I'll give that a shot, thanks!