I think, the handwritten font, that is used by the plotter, does not support german umlauts. But if you create your own handwriting font, this might be a fun idea to try to get away with.

Thats exactly what I was looking for! Thank you! Top 6 hours it is from now on.

Is there also a way to change the default sorting? I would prefer top 6 hours as default sorting for my default.

So just consider buying the ad free version for 20 bucks then?