How can I insert multiple animations to a poseball so that the animations...

[Rolig Loon]

Your poseball would need to be scripted specifically to do that.  It's not particularly hard to do, but I would be surprised to find a ready-made generic script that would do it well.  It would be best to write a custom script to meet your needs, or hire a scripter to do it.  What you are asking for is common in systems designed for exercise sequences -- like Tai Chi or Yoga.  In a more complicated form, that sort of script controls dance machines.

[Rolig Loon]

Your poseball would need to be scripted specifically to do that.  It's not particularly hard to do, but I would be surprised to find a ready-made generic script that would do it well.  It would be best to write a custom script to meet your needs, or hire a scripter to do it.  What you are asking for is common in systems designed for exercise sequences -- like Tai Chi or Yoga.  In a more complicated form, that sort of script controls dance machines.