Here's how to copy drum kits from one location to another in the TD-15.
1. Press MENU.
2. Press cursor down until COPY/PASTE appears in the display.
3. Press the function 2 (F2) button (COPY/PASTE).
4. Press F1 so "KIT" is shaded.
5. Turn the dial to choose the Kit that you want to copy.
6. Press F2 (COPY).
7. Turn the dial to choose the kit "paste" destination to copy to.
8. Press F3(PASTE).
9. Press F3 again (OK).
10. Press EXIT when you're finished.