It’s done. I’ve created my own fork of the “official” Calendar plugin.
I think I could fix some broken things and add features that I’ve personally missed in my daily use. My plugin is still named Calendar, like its origin. Maybe I’ll have to rename it later, as the in the plugin repository name is occupied by the original. Therefore, it’s not yet in the plugin repository, but you can download it from here.
Most valuable added features:
“Goto Date” button
Preferred calendar view
Moving & sizing of tasks
And many more. Please refer to the changelog for the full list of changes.
As usual, any feedback is highly appreciated. You are welcome to try it, you can report any issues and questions right here in this forum.
I think I’ll wait some time and then probably rename it. I would rather not kick others out, even if there is no further development for, may I say, years?