With a DB imported using the cm_ prefix, I have multiple blogs setup in the DB under cm_blogs. I would assume clicking this the “Sync Multi-Site Domains to Hosts File” would import those blogs into my etc/hosts file for subdomains.
Not sure if this is because of a non- wp_ prefix or not, but it’s not picking those domains up. I have to manually add them.
This Changing Site Domains w. Multisite seems to be related as I did change the domains there using wp replace.