Abaqus - How can I control two different parts at the same time with VDISP?

Hi Everybody,

I have to assign movement to two different parts and both of them should be controlled by VDISP.

I can write the VDISP for each of them (and they both works...separately) but I am not able to control them at the same time.
I tried to use CBNAME to indicate the name of the boundary condition I want to control, but it doesn't seem working (probably I'm using it wrong).

Thank you to whoever will provide help!

Abaqus ​​​​​​​