Palm Handhelds m500 - Manual (Page 211)

Chapter 8 Page 201
Tip: To restore all of the buttons to their factory settings, tap
Default.
Pen preferences
The Buttons Preferences screen enables you to change the assignment
of the full-screen pen stroke. By default, the full-screen pen stroke
activates Graffiti Help.
To change the Pen preferences:
1. Tap Pen.
2. Tap the pick list and select one of the following settings for the full-
screen pen stroke:
Backlight Turns on the backlight of your handheld.
Keyboard Opens the onscreen keyboard for entering text
characters.
Graffiti Help Opens a series of screens that show the
complete Graffiti character set.
Drag to top of screen