Select a rung in the logic program to display [Rung Number] and [Comment] for the selected rung.
You can directly edit the comment by clicking [Comment].
Select an instruction or operand in the logic program to display [Instruction Name], [Value and Address], [Type], and the detailed settings. Click any of these to edit the settings.
(or 
located to the left of [Detail Settings]) to display [Address], [Array Size], [Retentive], and [Comment]. The settings that you can edit differ depending on [Type].