LG 98TR3PJ-B Owner's Manual page 72

Icon Function
[Spotlight]
[Freeze]
[ScreenLock]
[Record]
Description
Teachers can use this function to focus on specific areas of the screen.
Teacher can freeze and zoom the current content on the screen.
Teacher can lock the screen with the [ScreenLock], and unlock it by entering the
password, which is set in [Settings].
Record the screen itself.
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