For Dungeons:
.instance open|close [mapid] normal|heroic|all
For Raids:
.instance open|close [mapid] normal|heroic|10man|25man|all|10normal|10heroic|25normal|25heroic
normal|heroic options will open|close instance in both 10man & 25man at once for selected difficulty
10man|25man options will open|close instance in both normal & heroic modes at once for selected num of players
--HG--
branch : trunk