Showing only parent's coordinates in inspector

If you are referring to the gizmo (3 colourful arrows) then this can either be placed at the centre of the selection - which is what you're probably seeing - or the pivot point. The button to change this is to the left of the play button and says "Centre", change this to "Pivot" to get it to position at the selected object's position.

If you're referring to the inspector where it says Transform with Position, Rotation and Scale then I am not sure what you mean.