Eufy Wired Door Bell with HDR

I have a new 1080P Eufy wired door bell with local storage. I also have a homebase 2 with 4 Eufy Cams.
I would like to install the door bell in the existing chime wires and at the same time keep the existing chime. All options I see are for bypassing the existing chime. Also how can I add this doorbell (once installed) to the home base?
I am looking to keep the existing chime and integrate this door bell to the home base.

Thanks for the advice.