Been trying to find an answer, and its a bit confusing with regards to the word 'subdomain'. as it can mean either:
Well I have 3 sub domains:
domain.com is located in /
mobile.domain.com is located in /mobile
preview.domain.com is located / preview
how does one go and change the individuals into one multi site?
I've gone and made it so the domain.com is the main network site.