Yes, you can change the metronome sound!
Follow these steps:
- Locate the metronome channel strip and replace the "Klopfgeist" plugin with Ultrabeat OR EXS24.
- Load in a preset within the instrument plugin that has the type of sound you want (there are lots of percussion presets in both plugins)
- At the concert level adjust the note values in the Metronome tab for "Bar" and "Beat" until they trigger the samples you want to use.
- Save your concert and enjoy your new sounds!
Or, check out this tutorial that can walk you through it: