Yamaha DTXpress/DTXplorer/DTXtreme

Hey guys,
I have the original dtxpress.  My cymbal trigger is connected to the
9/10 input.  By default, it triggers a bell sound on all drum sets. 
The only way I can make it something else is if i build a custom set.
 How can I change this default sound to something else that will be in
effect on all sets?

Thanks,
Mike