Existing cameras as Doorbell chime

The ability to link existing cameras to video doorbell to use existing cameras as additional chimes for doorbell.

[Mod Edit]: Title Modified to Enhance Search Clarity.

I tried to find where this may be posted otherwise and could not find any information so far.

It would be great to be able to have the doorbell chime be used in a case where a separate camera (not the doorbell or maybe the doorbell as well) detects a person. To add to that it would be cool to be able to select separate chimes for those alerts as well.