Automation to change the track to be played during the scrolling of the sequence

[Silver]

Hello everyone!
I just signed up, sorry for my poor English ...
I use Reason 5 as an external rack to play live, in rewire to digital performer. So the song from digital performer starts, i play, to change the machine during the sequence, without going to click on the track "record enable", is there an automatism to change the track to be played during the scrolling of the sequence?
Thank you

[Silver]

Nothing?