7.0

SYNTAX            : ARG @L

RESULTING ARGUMENT: None

FUNCTION          : Move the current cursor position the specified number
                    of lines forward, attempting to stay in the same column.
                    If the new line is too short (and therefore does not
                    contain the required column, the cursor goes to the end
                    of that line.

ARGUMENT          : The number of lines forward (backward if negative).

DEFAULT           : 1

NOTE 1            : Short-hand arguments Z and -Z specify all lines up to
                    the end (or beginning) of the buffer, while still staying
                    in the right column if possible.

NOTE 2            : This command aims to emulate the behaviour of the cursor
                    keys UP and DOWN. Where the cursor keys differ, is that
                    they remember the required column over multiple
                    movements; this command has no such memory.

MATRIX