Yamaha DTX-PRO Reference Manual page 75

MENU Button
5.
(Name)
Set a new name for the file.
Press the " " button ([F2]) to move the cursor to the bottom of the screen.
Press the "Name" button ([F2]) to display the NAME screen.
 Entering the file name
1.
Use the [–][+] controllers to select a character, and then use the "
to move the cursor to the next character position. A file name of up to 16 characters can be assigned.
2.
After entering all characters, press the "OK" button ([F2]).
6.
Press the "RENAME" button ([F3]).
The Rename confirmation screen appears.
7.
Press the "YES" button ([F1]) to change the name.
Do not disconnect the USB flash drive from the [USB TO DEVICE] terminal or turn off the power to the DTX-PRO while the file is
being renamed. Doing so may cause the DTX-PRO to malfunction, or corrupt memory in the USB flash drive.
"Completed." appears when the Rename process is complete, and the screen returns to step 2.
" and " " buttons ([F1] and [F3])
DTX-PRO Reference Manual 75