Thanx for your reply mtmckinley, I was mislead from the connections in Hypergraph, but at the end I've figured myself how to do in this case:

- I've set only one driven key to the first piece (the most easy to key).

- Selected the 3 curves obtained (scum1_rotX, scum1_rotY, scum1_rotZ)from the Hypergraph, duplicated 7 times, for a total of 24 curves, and renamed conveniently.

- Then with Connection Editor and Hypergraph I've connected the attributes of the locator (scum1, scum2 etc.) first to curves (scum1_rotX, scum1_rotY, scum1_rotZ,scum2_rotX, scum2_rotY, scum2_rotZ etc. ) then to rotX, rotY and rotZ of each single piece, as shown in the figure below.

- In addition I've added a global control called scum_all wich control all the pieces at the same time, setting a driven key with scum_all as driver and alle the 8 attributes together as driven.


That's all. Thanx anyway for your help, appreciate your work.

https://www.powernemoproject.com/temp/raptor1.jpg