The basics of using the click plugin in Pro Tools 7.3 are actually incredibly straightforward:

1. Select Track->Create Click Track

That was easy right? You can also do it the old fashioned way if you want (or have an older version of Pro Tools):

1. Create a mono aux track
2. make sure the volume fader is raised to somewhere between -6.0db and 0db (your personal preference here)
3. Insert the Click plugin on the aux track

Again, that was pretty easy, right?In 7.3, you can also configure all of your sessions to include the click track by default.

1. Select Setup > Preferences
2. Select the MIDI tab
3. Select the “Automatically Create Click Track In New Sessions” option