[OciXCrom]

I'll repeat myself - you DON'T need a plugin for this. Change the "amx_default_access".
This cvar controls which flags users get by default when they enter the server. "z" stands for normal user and usually has no extras.
The extras depend on the plugin you have on your server, so if you have the extras set on flag "b", you would set the cvar to "bz", meaning all players will have the flags "b" and "z", thus having access to the extras.