Just had an idea for a macro, but don't know the necessary commands

[Zozorozo]

I'm fairly certain that cannot be done.

the Cleric Stance should be /ac "Cleric Stance" <me>

But changing the bottom bar, I know of no macro command for that.

Just have 2 bars visible. All of your damage spells can go on Bar 2

[fanservice]

Just have 2 bars visible. All of your damage spells can go on Bar 2

I have 4 bars and over 20 hotkeys occupied already.

I'm asking for something that would work like how switching stances for warriors in WoW before mists of pandaria came out, giving me extra space for abilities without taking up extra space by switching the bottom bar completely.

The best you can do is:

/hotbar change #

This'll change your first hotbar to whatever number you set. However you still have to abide by keybinds you set on that hotbar.

I will try this.