The 'melodic' feature that Audiopat indicated some posts ago is just one of the great possibilities of the "MIDI window" that every DM10's drum kit offer.
Here's another one (mind you: this will take quite some work, but might be worth):
The DM10 seems to offer a window of 57 zones for every kit; let's pretend to use the DM10 just as a sound expander. Connect an Alesis trigger I/O to DM10's midi in.
Then use all the 10 DUAL inputs of the Trigger I/O with your pads/cymbals configuration (could sound more or less like a drumset with snare-bass-3 toms-hi hat-ride and 3 crashes - all single zone).
Program kit 1 in the Trigger I/O with 20 midi notes - kit 2 with 20 DIFFERENT midi notes and kit 3 with 20 STILL DIFFERENT midi notes.
Maybe you'll want to keep some sounds/notes the same for the 3 kits (I suppose the hi-hat sound... or maybe a crash or two... that's because the notes in a single DM10 kit are just 57 and not 60!).
Are you still with me? Now the fun part:
Keeping i.e. kit 001 in the DM10, you can get three totally different drum kits switching between kits 1, 2 and 3 on the Trigger I/O.
And that's just DM10's Kit 001: since the DM10 has 100 kits, you can access a total of 300 different drum kits
That's a good value for your money, I think!