/gmcmode <MODE>
Change the gmc mode to :

• image for images
• none for the default map
• test for the testing mode, (all new maps will be rendered in test mode by default if this is enabled)
• frames for 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>