There have been quite a few requests for this.  The idea is to produce an audio click track that can be shared with remote collaborators.

I just drop in 1 measure of midi of the pattern and accent I want, copy and paste it out however many measures it is then bounce it to tracks with tts1 or AD.  Takes me 1 minute tops and then I have an audio click track.

If you want your click to be "audio" so it is portable, then you either have to record it or copy and paste.  There is no way to set the program up to input an audio file that is truly dynamic, that is what the built in metronome does, but it uses midi or triggered .wav files.  You have to somehow make then permanent which means either record, or cut-paste.

SimpleM
 There is no way to set the program up to input an audio file that is truly dynamic, that is what the built in metronome does, but it uses midi or triggered .wav files.  You have to somehow make then permanent which means either record, or cut-paste.

Such a feature has been repeatedly requested.

I can think of a dozen ways to make a click track, without the metronome, YOu can use the metronome in many ways as well. It has it's own little sound generator and output which is all easy to change. 
MIDI is safer as it will always lock to the tempo, An audio metronome could easily drift. 

Don't look now but midi tracks can fall "out of sync" when looped.
I freeze my EZD (or SD2) tracks early on to avoid this.
Throw a "click" track at me and I'm probably "toast".
But then, I'm guitarist, not a "musician"....
 
Tom