click track

In your Live set or Studio set, select a channel you're not using, and give it a drum patch. Route the channel to outputs 3 or 4 (on the effects routing screen). Make sure to keep it dry, no reverb or chorus, as those effects will be heard through the main outputs.

Then record a one bar phrase using any sound from the drum patch (high pitched sounds are better for metronomes) and add it to your playback song, copied as many times as you need.

Now you just send a cable from output 3 or 4 directly to the drummers headphone amplifier (without an amplifier he might not hear it loud enough).

Thanks a lot for that.... I thought it was as easy as to assign the meetronome to chanel 3 or 4 but apparently its not

cheers