/gmcmode <MODE>
Change the gmc mode to :
imagefor imagesnonefor the default maptestfor the testing mode, (all new maps will be rendered in test mode by default if this is enabled)framesfor video frames
all other modes are currently unsupported
/gmcrender <map_id> <arg1> <arg2> <arg *> ...
Render a specific map in the current mode with some parameters.
/gmcmode image Change into image mode
/gmcrender 2 IMG.png Render IMG.png on map with id 2.
/gmcmode frames Change into frames mode
/gmcrender <ticks between frames> <directory (from server jar)> <file extension of the images>