Switchy currently exposes a switch event to figura;s lua when they are both loaded together, would it be possible to allow switchy to request the client to change the current avatar, in order to allow different memebers of switchy to have different avatars (without having to have one avatar with all the models loaded into it at the same time)

Technically, yes, but i am afraid that is something Fran will say needs to be done by switchy itself (on the client).

switchy is a server side mod though

thats something that would be better as an addon instead