Perform animation when idle

[Spidertomb]

So, I used Looping animations recently, and had an idea spring from it.

Would it be possible to auto play an animation whenever out of combat/standing still?

So whenever my character stops moving he would automatically play idle4 for example.
Thus giving them their own 'personal' stance?

This kind of can be done with looping animations but, it produces weird visuals as it exits and re-enters the animation (which already is a loop.)