Cycle of Rhythms Metronome You get all these metronomes with Bounce Metronome Pro
With this metronome you can play a cycle of rhythms and polyrhythms one after another. It's especially useful if you want to make a long cycle of rhythms or a cycle of polyrhythms.
Here it is playing 4/4 with 4, 6 and then 8 notes per beat:
You can actually do lots more than this, you can play different instruments for each measure, play each rhythm for as many measures as you like, with changes of tempo and so on - you do that using the Script window with its easy to use script. Basically you can do just about anything you like once you get into the details of how the program works.
But this metronome gives you a very quick and easy way to set up rhythm cycles without any need to look at the script at all. It does make a script for you, but you don't need to look at it. If you want to tweak the rhythm after it is made, you can edit the script to configure the rhythm to your hearts desire.