You can use “screen” in a console to start an app,then you can “detach” from the running program goto another computer then log back in then “reattach” if thats what you mean.
I can for example use “ssh” to log into my server,use screen to start a bittorent download using btdownloadcurses on the command line then detach from screen and leave the torrent downloading.I can then log in from time to time and check its progress.
If you need to do it using the the GUI then i beleive you can tunnel X through ssh but i have no idea how to do it.
Edit: gnu.org/software/screen/