I was just about to post the exact same thing again and found your post. 
I wrote this feature request already in 2021, but so far there was no enhancement.
Better control of Humanize settings is sorely needed in scaler. It’s too simplistic and not really a solution as it is now. It’s a pity.
But this also applies to strumming etc., which also only has a few fixed values for the tempo.
Fixed values depended on the track tempo are very important to have. But is a pity that it’s limited to it. Sometimes you want a setting that is *** not *** exactly fitting the tempo.
It would be important for these settings to be easy to adjust. So please not somewhere deep in the settings. I would prefer a separate popup/overlay where you can adjust everything very quickly and easily.
Thanks!