Yamaha DTXpress/DTXplorer/DTXtreme

Sorry for posting here, but I felt it was very important that I post this on 
the DTXpressions list and this one.

Okay:

I wonder what's going on...  What is the "UT MAP copy from" function used for?  
I tried to use it to copy from preset drum set #29, for example, into user 
kit 49.  And it doesn't appear to do anything, even though it gives me the 
"complete!" message.  Do I have a software bug?

Thanks!
Stephanie