The "Stage" element on the home page of the demo project is a monster in its own, if it comes to the name of the component it may contain. That's already true in the English translation, but the current German translation is not optimal either.

I suggest the following:

• change the English translation to:
  • "Teaser group - stage paging" -> "Paged teaser group" (from M5 documentation). I don't think mentioning the "stage" again helps here, so I've removed it.
  • "Teaser group - carousel" -> "Carousel" (from M5 documentation).
  • "Teaser group - carousel item" -> "Carousel item"
• change the German translation to:
  • "Bühne" -> "Stage". I don't think translating this term helps. Same case as with "Teaser".
  • "Teaser-Fraktion - Stage paging" -> "Teasergruppe mit Wechsler"
  • "Teasergruppe - Karussell" -> "Karussell"
  • "Teasergruppe - Karussellelement" -> "Karussellelement".

In the dialog for editing the "Teaser group - stage paging" component:

• "Bühne blättern" -> "Elementwechsler"