With this command, you will be-able to set an entire area with a specified room-flag, this works great for setting up a area with all ROOM_DARK flag, or whatever else you may want to set an entire area with.
Personaly, it is VERY useful, and easily expandable if necessary.
I've found this to be quite useful, and my immortals have found
it an great pleasure to work with aswell, so do enjoy.
Another hit by dazzle :)