Locking AVs heading during animation without sit?

I got an other one:

When an AV plays an animation while NOT in "sit" , the heading of the AV (Where she looks) changes when i use the buttons to rotate.
When in sit, the animation plays and the AV remains locked in the position she was.

Is there a way to achieve this without sitting?

To play the animation heading the direction where the AV was when the animation started, and unlock her when the animation finishes.

Like 'sitting' momenteraly in position during the duration of the animation, and 'unsit' when it finishes.

Cheers

This has more to do with the particular animation used than actually sitting. If the av is playing an animation which doesn't animate the head, then it will follow the mouse movements. This may apply only to animations of a certain priority level or greater, since the wiki states "It should also be noted that the individual avatar bones have their own priorities," but goes into no greater detail than that.