The Android App is organized to enter the results by room since that is the natural workflow of the inspection process and it reduces key strokes / touches. In each room are the items organized by system that are typically or could be found in that room. An item can be added to or removed from a room easily. See Add an item or Remove an Item
Most Importantly, the inspection report will NOT show the inspection by room, but instead will organize the results by system as is common among inspectors.