This may have been answered before,but my search-fu was too weak.
What action does it take to end a totem transformation (from the various Druid shaman archetypes)? And does it take a different amount of time to change the specific power gained from it?
What action does it take to end a totem transformation (from the various Druid shaman archetypes)?
I'm not sure you can turn it off in the middle of a minute. You may have to wait for it to have been an integral number of minutes and then not choose to renew it.
And does it take a different amount of time to change the specific power gained from it?
I think you need to end / wait for the current one to end and then start a new one; I don't think you can change aspects half a minute it. Not positive, though. (Usually I don't say things this wishy-washy but since no-one else has spoken up....)
Under Bear Shaman Totem Transformation it states:
"The bear shaman can use this ability for a number of minutes per day equal to her druid level. These minutes do not need to be consecutive, but they must be used in 1-minute increments."
The animal totem druid should still be able to expend another use of Totem Transformation to change the choice of power gained. This would of course reset the 1 min timer, effectively dismissing the previous use, but to end it altogether, she would have to just wait it out.
The only thing that totem transformation interferes with is other polymorph effects (including other uses of itself). This quote from the Magic section of the Core Rulebook section of the PRD says what happens if you decide to activate Wild Shape, Totem Transformation, or another polymorph effect during a minute of Totem Transformation:
"You can only be affected by one polymorph spell at a time. If a new polymorph spell is cast on you (or you activate a polymorph effect, such as wild shape), you can decide whether or not to allow it to affect you, taking the place of the old spell."
While Totem Transformation is technically a supernatural ability rather than a spell, it would be reasonable to apply this same rule to a polymorph ability used while under Totem Transformation.
So in order to change from one benefit to another you just need a standard action and to move to the next minute increment?