Different dropdown options for different rows in same column

I want to add different option in dropdown in same column based on if row is base row or not.

this is example I want to add different option if row is Base (i.e having square brackets in category cell)
all other cells should have only formula, input and data option

I have another question why I am getting null when i getDataAtCell(row, 4) inside renderer? all other getDataAtCell are working. how can resolve both issues?


I’m closing this ticket as duplicate of: Dropdown with different options in a column