Hi, newb here.  I have two questions.  Sorry if they've been answered elsewhere, but I haven't found them, so please point me in the right direction. 
  
1 - How do I change DT50 channels via the HD500? 
  
2 - When I start to program a new HD500 patch, my amp defaults to channel B.  I can't seem to change this behavior.  Why?  Even when I manually change channels on the amp and save the preset, it reverts to channel B next time I load the preset. 
  
Thanks! 
Mawg