How make Fixed cell editable with AdvStringGrid

Please Iam struggling hard with no success!

  1. I wish my AdvString grid when horizontally scrolling to show always first 3 columns(Freezed), in my case only first column is Fixed.


I can define my first 3 column to be fixed columns so they will not scroll but then how can I select their cells an how can edit it?
Than kyou in advanve

Fixed cells are by default not editable.
You can make these editable via
Grid.MouseActions.FixedColsEdit and setting to a different setting than fceNone