Remote Control Button Lock - Epson PowerLite Pro Z8150NL User Manual

Security Functions
B
Select "On".
The buttons related to the lens operation are locked according to
the setting you chose.

Remote control button lock

This function locks the following buttons on the remote control.
Remote Control
Procedure
Remote Control
Each time the [Help] button is pressed for at least 5 seconds, the remote
control button lock turns on or off.
49