Changing p[ ] Variable in one Point

I’m looking for a solution to remove part of a position.
For example I have position that is variable. I just want to delete the rotation of az / extract the other x,y,z,ax,ay. Is there a function for this?

Pretty sure you can just say something like myPose[5] = 0 and be done. Just use the “Script” node and choose whatever pose you want to change.