For spells that are not on cooldown but ARE on GCD, the condition: ("On Cooldown" = True) is false (and in my opinion, should be true).

This could likely be solved one of two ways, depending on how you think "on cooldown" should work:

1. Add a boolean for is on GCD to the "on cooldown" check, or
2. Add a conditional for "is on GCD"

I disagree that it should be true when GCD is selected but it's not on CD and maybe instead should either have a Trigger option for On GCD or a global condition for GCD.

EDIT: Oops that was your number 2. I prefer that one.

If you really want that behaviour add a trigger for the gcd cooldown. I very much doubt that many people want to check for the gcd and thus this feels very much unnecessary to add to the cooldown progress trigger.