Quote fromQuote fromIn addition you can lock a project or area for specific users. Like blb an area with a special air block and only the users (and ops) can go there. perhaps even backup sections. so /blb lock_air grimshad and only he can build in that section.
you can lock a map so only people with rank writer or above can edit it.
you can also make a map private where only players writer and above can join it.
most people make the default map a portal map. then they have norm one public map anyone can edit.
I believe he was talking about the ability to use the fill (/blb) command to fill an area with a tag specific to a single player or "Designate a sepcific area in a world to a specific player" like the common "designated guest area" of most servers with decent custom server software.