Scale Birth Skeleton Operator as a group

[glty]

I would setup the tree in one flow, then import that flow as a tyActor into your scaling flow. Scale the tyActor root particle, and the rig particles (the tree) will scale together.

Thanks for your the replay, 

I can now scale and flip the tree as an actor but the dynamics are lost. Not really sure what is wrong.

Having the dynamic tree alone works fine. all the branches, leaves move as expected but if I add it to the flipping flow then it acts as a static tree.