Great minds think alike ^^ I was working on my totem set-up yesterday too.

Initially I was thinking about exactly the same thing as you one button for setting down all totems in a cast sequence and then an individual one for fire and grounding reapplication.

I stumbled on a few problems tho. (I'll be posting my totem setup once I get back to my PC)

There were a few things I realised I wanted for my totems.

A) PvP setup for 5 shammies
B) PvE setup for 5 shammies
C) PvE setup for 4 shammies and my Pally
D) PvE Raid setup for 5 ele shammies
E) PvE Raid setup for 1 ele shammy in a caster group (melee would have an ehn)

F) Tremor totem on rotation (round robin) for instant fear protection
G) Choice of fire totems
H) Grounding totem reapplication

As you can see my list was quite demanding and I'll post my set-up when I get a chance to