CipherLab RK25 Reference Manual page 151

By selecting a
Pattern
settings.
advanced settings are:
Screen Lock
Item
Make pattern visible
Power button instantly lock
Lock screen message
, , or
PIN Password
Switch to make the unlock pattern you are drawing to be visible or
invisible.
This function only works when setting pattern as screen lock.
Switch to enable/ disable instantly lock screen by pressing power
button.
Set the message to be shown on the lock screen.
method, you can access
Description
149
Basic Operation
advanced
Screen Lock