Is there a way to play animation in editor?

you may use “editor utility blueprints” or “editor utility widgets” for this.

  1. Click “add new” in the content browser
  2. Select “Editor utilities” > “editor utility widget”
  3. Make your ui and code.
  4. The code section provides a “tick” node which ticks at editor time (without play) !
  5. (select “Always Register” in the “class defaults” settings on the code page)

then right click the widget in the content browser and click “Run editor utility widget”.
After the widget is opened, it will tick.

I use this for timelines and camera control in editor time.

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