Referring to this topic, that got closed since the new settings were added to Wappler.
https://community.wappler.io/t/how-to-persistently-change-google-maps-cluster-settings/45509/14
The options now show up beautifully in latest Wappler:
But sadly the setting does not work for me. I did try to clear cache, open in incognito. It should now not make these clusters, since they are not min 20: