MicroEMACS has a message system that allows commands to display error or status messages that are too long to fit on the echo line. At present, only the display-version command uses the message system, but other commands may use it in the future.
[unbound] (display-message)
Display the message lines one at a time on the echo line, then enter a special message display mode, in which certain keys have the following meanings:
C-N, Space, Return: go forward one line, and quit if the end of the message has been reached.
C-P, C-H, Backspace: go backward one line.
C-G: quit, leave the message unchanged.
C-C: quit, erase the portion of the message already read, but leave the remainder of the message unchanged.
M-C-V (display-version)
Copy the version strings into the message buffer, then execute a display-message command (see above). Use this command to find out which version of MicroEMACS you are running.