I feel realy dumb asking this question - All together now "the only dumb question is the one you don't..." - but what is "FK"? It's not a term I have heard before.

Quote - I tried to make a master dial on the BODY to drive all the blocks' PointAt influences with one dial, but for some reasons it does not work when saving and loading the object again, but it could be my mistake.

Your slaving code appears to use the wrong syntax, it reads: valueOpDeltaAdd BODY:3 fk_ik PointAt deltaAddDelta 1.00000 Try this instead: valueOpDeltaAdd Figure 3 BODY:3 fk_ik deltaAddDelta 1.000000 Of course the number "3" needs to match the figure number in the rest of the cr2. This should solve the ERC problem, but there may be other problems with maintaining Point At through a save and reload. I vaguely remember haveing problems myself, but it was some years ago, and I forget the details.