In play mode, you can walk around MUME world with your character, and map tries to be synchronized with real position of your character as much as possible. For example if character flee, all rooms around last selected room on map are searched, and is any of rooms matches, it is considered as new position of character. But if there are more than one or zero rooms that matches, map goes to offsync mode. If you have autosync option turned on, it tries to synchronize map after every move of your character.
You can use online commands directly from your text client, to perform door actions, synchroniozation of map or some other usefull things.
Here are some of the commands, which can be used via your text based client:
n, s, e, w, u, d - move commands
_open [n,s,e,w,u,d] - opens the door
_close [n,s,e,w,u,d] - closes the door
_lock [n,s,e,w,u,d] - locks the door
_unlock [n,s,e,w,u,d] - unlocks the door
_pick [n,s,e,w,u,d] - picks the door
_back - empty prespammed command queue
_sync - tries to synchronize map with real character position
_set - update room information on map
_reset - reset room information on map
_printdesc - print description of selected room
_printparsed - print descriptions, parsed with parsed regexps