Dell 3100MP User Manual page 14

The Enter button functions as the left mouse button.
If the remote control cover is open, use the directional pad to navigate through the
1 directional pad
Enter button
2
3 laser radiation caution
Power
See "Power On/Off the Projector."
Source
Press the Source button to choose RGB, Digital RGB, S-video, and composite sources.
R-Sync
If the remote control cover is open, the R-Sync button synchronizes the projector to the input source.
If the remote control cover is closed, the R-Sync button functions as the right mouse button.
Directional Pad
The directional pad can be used to control mouse movement when the remote control cover is closed. The mouse
function is enabled using the remote mouse Y-cable connection between your computer and the projector.
Laser
Aim the remote control at the screen, and press and hold the Laser button to activate the laser light.
Page Up
Press the PU button to page up.
Page Down
Press the PD button to page down.
Menu
Press the Menu button to activate the OSD. Use the directional pad and Enter button to navigate through the
OSD.
OSD tabs.