in ArcMap-Reports we could use the Option Can Grow to Text fields, so they were able to grow and the following fields moved downwards. I can not find this option in ArcGIS Pro. Is there something similar?
Thanks for the feedback. Currently, we do not support auto-growing text fields in Pro, but we do have a development item for it for near-term release. I'll add a note that you would like this supported in the SDK as well.
We have an internal item for this in the near term (1-2 releases). We do not support this in the UI yet either. When we do that work, it will be included in the SDK.
You can contact support and ask to be included in ENH-000126018, which is the enhancement request in the UI. You can also submit an enhancement specifically for the SDK, if you would like.