I posted a similar question a few days ago. Here's what I came up with:

At top of the screen-

!. Right-click DRUM or any RT.

2.Select 'Save track as performance file'. The DRUM label at top turns red. You also have option to save as WMA file.

3.Left-click AUDIO label at top on the Menu Bar, and now at the bottom, click on 'Move performance track to audio track.'

4. Click on AUDIO EDIT window in the VIEWS section and you'll have a big, fat juicy WAV file.

Within this window you can copy, cut and paste. I don't know nuthin' about no nodes or envelopes though..LOL


HTH

Percy