Jay,
I no little about AC's cloud set-up or using RDP, so I may be totally off base... but if I hear you correctly, an issue is that one user, lets call him/her "Doc A" is moving from office to exam room and must log off and on to AC at each computer. That process is time consuming, and of course you do not want to have to pay for that one user twice, once on each of those two machines, hence the need to log on and log off.
But what if when Doc A moves, say from the office to the exam room, they stay logged into AC in the office but in the second room somehow remotes-in to the initial computer?