Increase and Decrease tempo automatically

Please add an option to automatically increase, then decrease the tempo when it reaches the target tempo.

Hi Tadamichi, are you aware of the feature "Incremental tempo change" that you can access by pressing "..." button in the Metronome interface? You can already increase or decrease the tempo. The only thing you can not do is to first do one, then automatically the other. So this could be a worthwhile addition maybe, but it would require a big change to the user interface to chain together different changes