Use the following set of keys to pause and abort output in 2AM-BBS:
Control-S pauses the system. Hit any key to resume output.
Control-X, Control-K or TAB abort a message or textfile that is outputting.
Control-C or Control-A abort all output. To abort a whole range of messages, use these keys. For more information on ranges, see RANGE in the main help menu.
Control-N skips a base if you are reading a range of bases.