Yeah, I checked and one of the options for my 2nd controller is to "follow master keyboard". So even though it's not technically a master keyboard it does perform as such. I'm running the latest version of Reason.
Richmond, VA, USA
Reason 7 - Studio One Pro V2.5
Optiplex780 8G Win7 & Dell Latitude E6410 4G Win7 64 bit
Presonus AudioBox1818 - Focusrite VRM - Fender SuperChamp X2
MAudio Oxygen61 - Akai MPD26 - iPad2