Having multiple macros active at the same time.

[Niwashi]

No, it's not possible. One alternative is to keep an extra hotbar visible (even if you're not using it directly) just to show any long-cooldown skills that aren't on your main hotbar. (I'm assuming you're using a controller and cross-hotbars, given the reference to not being able to see skills from a separate hotbar.) Like Houston009 described/showed in this post, you can use a straight hotbar just for cooldown visibility while your crossbar is used for actually activating the skills:

Place a hotbar over your crossbar with abilities that have CDs. That way you can see the CDs of moves you may not use very often. Also try to get use to the L2 + R2 / R2 + L2 function to give yourself more slots for abilities.

Something like this:



However, I have buffs such as B4B and IR on both crossbars, so there is no point in putting it on the hotbar.