[Tweener] number of actively running tweens to optimize rendering effort

[Flex Rails]

hi there,

can someone help me with this?

1) I'd like to find out how many tweens are actively running,
so that I can determine whether my animated scene needs to be rendered or
not.

the isTweening(), getTweens() etc. methods all require p_scope:Object.
but I wanna know about all active tweens.

2) I'd like to stop tweening on one part of the scene, while keeping the
tweens on another part of the scene still running.
is there any way to group tweens and pause / resume those groups
independently rather than all or nothing?

any ideas?

thanks a lot,
flexrails
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