Remote control of T5 functions

[Beemer]

My Tyros5 is located upstairs.  I want to use its rhythm sounds as backing when playing my acoustic accordion.  This is not a problem if i am sitting beside the T5 but I normally play my accordion downstairs.  Perhaps someone has an idea how I can achieve this?  Could a laptop be used with software to wirelessly link to the T5 to permit start and stop of the rhythm?  I know how to send rhythm audio from the T5 to remote powered speakers.