Tring to implement RowSpan via Python (Not sure where to ask)

I am trying to implement RowSpan for a customized ag grid. I’m doing this from Python and everything else seems to work great in Streamlit. Any opinion or start anyone can give would be greatly appreciated. I did the nested grids and those work however people want the “Merge” look they get out of excel today. Please see attached screenshot and again any help would be greatly appreciated. Thanks you.

Screenshot: This is a few columns with 1 row and up to 4 rows for Target. I have each as a row into itself. Thank You again!!

Josh