I wouldn't trust very much a support like this. But here is the answer to your question.

1.model the pipe as usual. 10....20....30
2.model the clamp of the hanger as being a very short pipe like 10010..10020..10030. (ambient temp and zero pressure)
3. place an +yrod at node 10020.
4 place a restraint at 20 Y and guide (0.1 friction) with Cnode 10020.

If all the supports will be like this maybe you will receive an error.

Regards,