midi_macroadd: <alias> | <macro> | <delay> :: <command>

Adds a command to the named macro on the given midi in port.

• alias is the alias given to the port when it was opened; it is not optional. The default midi in port can be addressed as wm_default
• macro is the name of the macro to be added to
• delay is optional; it is the delay in milliseconds of the command in the macro
• command is the command to be added to the macro - in the standard format