ne's manual

4.6.1: Record

macro recording is initiated. When it becomes false, the macro recording is stopped, and the macro can be played (see Play).

If you call this command with no arguments, it will toggle the flag. If you specify 0 or 1, the flag will be set to false or true, respectively. An upper case `R' will appear on the status bar if the flag is true.

The reason for providing a flag instead of an explicit start/stop recording command pair is that this way it is possible to bind to the same key the start and stop recording command, while still being able to specifying ``absolute'' menu items (by using Record 0 and Record 1). For instance, the default key binding for CONTROL-T is simply Record, which means that this shortcut can be used both for initiating and for terminating a macro recording.