Yamaha DTXpress/DTXplorer/DTXtreme

I have a Yamaha PSR 290 keyboard and was wondering if I could use the 
DTXpress with a direct Midi connection to record in one of the 6 
track sequencers built into the keyboard.

The question is will this work and can I do this with only 1 Midi 
cable....  DTX out to KB In?  


Im interested to know if anyone has tried this.

Thanks,

Dave