Are these instructions still valid:
Guess this would also solve my current problem with having /blog -slug on the main site.
Asking this, since I remember reading more recent instructions saying that server structure could not be changed after installation.
Or is it better just to make a fresh installation? OR could I have both, keep the current install, and set with .htaccess a subdomain only to selected subsites? Would this cause any problems in case in the future there would be +50 subsites?