Whenever I want to make a unit w/ a property, I never know which # to input to get the effect I want, and I always end up going to classic trigedit to do it, which is annoying.
The numbers' effects also seem to vary from unit to unit.
Is there any list or something for what the diff numbers' effects are?

Not that I know of, I'd just stick with using Classic Trigedit.

I'm assuming you're using SCMDraft 2.
The numbers represent SLOTS, not effects. You can modify your slots by selecting the "Unit Properties" tab below the Toolbar.

You can also set everything that you want to be created with the same properties to the same number ..
like 3 = created invincible ...

and then later change the number 3 slot to be invincible
u can do that with scmdraft 2 or uberation or etc....