Help Coding - Random animations

[ZackTheRiolu]

In my case, when there is a change of "Statedef", there is always a basic animation that each time is repeated up to a certain time limit.

This time, however, I would like that during the change of "statedef", there is NOT a single basic animation but Ten. Ten animations that repeat each other completely random (There not should be a dead time).



In addition, during their "movements", always casually but with less probability, i would like that can join others five particular animations, and then, always random, returning to the firsts random animations.

Since it seemed complicated to explain, i hope that with this drawing you can understand it better.
(This is just an example, the number of animations i said it in the text)

If you have any doubts tell me, thank you in advance for the help