You can either make a new Call of Spirits/Elements/Ancestors and individually choose the totems that you want on him right there. For example for your main shaman you choose:

Tremor Totem, Searing Totem, Grounding Totem, Mana Spring Totem

But the thing with that is that if you have 3 more tremor totems, you drop them all at once. And the tremor totem will pulse 3 times on the same time. (Trying to remove sleep, charm, fear effects three times on the same moment, wich isn't needed).

So if you want them to pulse individually i have choosen to not drop Tremor Totems in the Call of Spirits/Ancestors/Elements and i have put Tremor Totem on my action bars, bound to a key. This key is included in my round-robin template of KeyClone. If i press the key, i drop tremor totem 1x, press it again, i drop the second one, drop it again i use the third one. So if you press it 4 times you drop 4 totems on a different moment, and they try to remove those sleep, fear and charm effects on a different moment.

Example not staggered:
Second 1: 4x tremor totem dropped
Second 2: Nothing
Second 3: Nothing
Second 4: Nothing
Second 5: Tremor totem tries to remove sleep/charm/fear effects x4.

Example Tremor Totems staggered:
Second 1: Tremor Totem dropped on toon #1.
Second 2: Tremor Totem dropped on toon #2.
Second 3: Tremor Totem dropped on toon #3.
Second 4: Tremor Totem dropped on toon #4.
Second 5: Tremor totem from toon #1 tries to remove sleep/charm/fear effects from party and raid members.
Second 6: Tremor totem from toon #2 tries to remove sleep/charm/fear effects from party and raid members.
Second 7: Tremor totem from toon #3 tries to remove sleep/charm/fear effects from party and raid members.
Second 8: Tremor totem from toon #4 tries to remove sleep/charm/fear effects from party and raid members.
Second 9: Tremor totem from toon #1 tries to remove sleep/charm/fear effects from party and raid members.
Second 10: Tremor totem from toon #2 tries to remove sleep/charm/fear effects from party and raid members.
And so on and so on...