SmartStart questions

I am trying to understand Z-wave Smartstart. I have a few Aeotec devices which support Smart start which paired with the hub before I learned about smart start. My questions are:

  1. Does the Smartstart list in HE survive once the device is paired? I believe it does and is used for rediscovery.

  2. Do I have to exclude the devices which were paired in the traditional way and then re-pair them using smart start in order to include them in the smart start list? Or, can I just add them to smartstart by scanning the QR after they are already paired and they will then become associated properly with the existing device?

Thanks in advance for the assistance,