Do you know what kind of API they use if any? HTTP, TCP? Can you control it with command lines (in which case we could generate a profile using the SSHCustom plugin)?
I looked at the man page and saw the -send-action option, which should do the trick. The problem is, I can't find the list of actions that can be performed ('pause' is mentioned in the man page, 'play' also works). Where can I find it? If such list doesn't exist, can you please write down the most obvious options? move forward, back, etc.
Coversal supports plain mplayer, but it would be great if the same was true for SMPlayer.