For both of the questions 1 & 2 – are these just centralized features of the software and have nothing to do with the specific camera?
Yes, this is dependent on the software of ADC backend and the cameras. All the cameras you listed support Alarm.com video analytics. Below are some useful guides to get started. The rules guide shows the options for recording regions to determine what areas trigger recordings within the field of view.
For the cameras (not the doorbell), are these cameras available in gray (vs the white default)?