Ring 2 Doorbell - Linked to Alexa Devices - Want Them To Ring Twice or More

Hi Folks, I purchased the Ring doorbell for my folks, for that added extra bit of security. They're delighted with it, however, is there a way to have it ring a couple of more times via the Amazon Alexa systems? Their hearing isn't great, so a repeat ring really helps them pick up the noise and know someone is at the door. If that makes sense. Not sure if it's a setting within the doorbell, or a setting within the Alexa app (presuming the latter). Any pointers and guidance would be most appreciated, as I've looked through all the various options and cannot see anything obvious. Thanking you in advance.