I have a polygon feature class and I need to rotate each feature around it's own centroid 13.5°. The Rotate tool in Modify Features can only rotate features around a common centroid. How about Python or Arcade?
The post here seems o have an excellent answer from a user called BERA:
It seems to be ready to go, except for adding a field specifying the rotation value for each feature (in this case create a new float field and set them all to 13.5 using field calculator).
You could of course modify the script and set it instead of a field in the cursor (row) to a user-defined parameter for all the features.
Press A key while rotating to enter a specific rotation angle.