Some tools, such as Move Up/Down Modifier (arrow in the Modifier list) was never meant to be tweaked.
Remove operators from redo panel that don’t make sense to be user-tweakable
List of useless redo options
- Move up/Move Down Modifier (click arrow in Modifier Properties) shows a useless text field
- Add Modifier redo (I can't see how this makes sense)
- Remove Modifier shows a useless text field
- Move/Rotate/Scale object: 'Confirm on Release' in redo panel. Makes no sense to tweak that
- Move/Rotate/Scale object: 'Edit Texture Space' in redo panel. Makes no sense to tweak that