Just got this to work this past weekend....
First add a routine to alexa
Then choose device ( doorbell name)
Next choose (you have the option of doorbell rings or senses motion)
Add "Custom" .... typing "show me the (named view like front door)" (this will auto add alexa, to it)
Next choose which device(s) to show on.
It's been working good... I chose motion because it still takes a few seconds to connect and motion should occur before anyone actually gets to the doorbell.