If you have two machines available, A and B, you can remote login to B from A and see B's desktop from a window on A. You can do everything you could do if you were in front of B and you can (for some things) copy/paste between the B window on A and other A windows. As I recall, text and small files work well via the clipboard, but not copy/past of bitmaps and directories. You can probably experiment in your office from a non-JMP machine for A with a JMP machine on B to see how it feels.
Normally you'd maximize the window and pretend you are actually on B.
If B is not a server, anyone sitting in front of B will get disconnected while A is connected to B (again, as I recall.)
I do remember, a long time ago, crashing a machine C by trying to remote connect to C.
Craige