Lock / Unlock button in Line crossing detection configuration?

[atanas.dyulgerov]

Question: What does Lock / Unlock button do in Line crossing detection configuration?

My camera model is HWP-N2404IH-DE3

 

[atanas.dyulgerov]

Never mind. I just found it explained in the manual:

Click Lock to lock PTZ control to prevent the interruption from other PTZ related action during configuration.
Normally, the PTZ control is automatically locked when you enter the configuration interface.
You can manually resume the lock when the countdown is over