■ Key LockPress and hold this key for second to turn the Key Lockfunction on. Press and hold this key again for second toturn Key Lock off. While Key Lock is activated, the followingkeys will not function:Auxiliary key, Side 1 key, Side 2 key, and Microphone PFkeys.Note: You can still use the following key functions while KeyLock is activated: Emergency, Monitory Momentary, MonitorToggle, Squelch Off, Momentary, and Squelch Off Toggle.■ Lone WorkerPress this key to enter or exit Lone Worker Mode. If no keyis pressed during the time configured for the Lone Workerinterval time in Lone Worker Mode, a Lone Worker tone willsound. Subsequently, if no key is pressed while the LoneWorker tone sounds, the transceiver will enter EmergencyMode.■ Monitor MomentaryPress and hold this key to deactivate QT or DQT signaling.Release the key to return to normal operation.■ Monitor ToggleMomentarily press this key to deactivate QT or DQTsignaling. Press the key again to return to normal operation.■ ScanPress this key to start scanning the transceiver channels.■ Scan Temporary DeleteWhen Scan pauses at an undesired channel, you canremove that channel from the scanning sequence bypressing this key.