Controversial posts made by MMRIZE

@techlady
Unfortunately, MMM-CalendarExt2 doesn’t respect MM’s default show/hide mechanism, so you need some tweek to achieve your goal with some paging modules.
I’m regretting that I made that way, I thought it was a nice idea at that time. Anyway CalExt2 is going to its life ends due to dying dependencies. So at this moment I have no plan to improve. (Maybe new module instead?)

@sarcux
Well, I’m the original author of the documents and modules. So if docs are not helpful for you, it’s sorry.

However, hmmm…

...
slotSubTitleFormat: ' ',
dateTimeFormat: {
  sameDay: "[Heute] HH:mm",
  nextDay: "[Morgen] HH:mm",
  nextWeek: "dddd HH:mm",
  lastDay: "[Gestern] HH:mm",
  lastWeek: "[Latzt] ddd HH:mm",
  sameElse: "M/D HH:mm"
},
...

I just added this and got the above-captured image. And all are also documented already.
(You probably need to modify dateFormat also for fullday event)

@sarcux
For localization: https://github.com/MMM-CalendarExt2/MMM-CalendarExt2/blob/master/docs/Localization.md