When you measure distance in Scene Viewer you get the distance in space and also the vertical and horizontal distance. Very nice.
When you measures an area, eg. for a roof you get the area in space (of the roof) and with some effort you can 'detach' one of the points and the measurement area snaps into to horizontal so you can see the horizontal area (when somebody looks straight down the roof) or the area of the house.
At the moment this detaching of a measurement point is quite cumbersome. Would be nice to have an easy option to get the different measurements (just like distance measurement)