Dual Notification Problem

Hello guys. So, this is my problem. I can't activate dual notification. I click on this :


And look at this :


I cannot check anything. Can you help me with this? Thanks.
I'm running Android 4.4.2

Hi @edd, what do you mean "dual notification"? Would you please tell us more details about your problem? Thanks.

Hi @Dora, I'm talking about this :

Hi @edd, from the screenshot you posted last time, seems you have checked the box of "Notification Mirror service" in your settings, and you should be able to receive the notifications on your PC. If you can't receive your notifications on your PC, please re-set your settings.

I managed to make it work. Thanks for your fast answer and support!