Offhandedly, I couldn't say either what would happen if you modeled your entire system to be CNODEd to the same node (e.g. 14) and turned off the connect geometry through cnodes option.

Thus I would concur with Sigma - you should CNODE all the supports and add a new node number for each one, and apply the displacement each time.

It's cases such as these that you will benefit from a node numbering plan.