Editing in section has taken a big step forward, but it still isn't finished.
You can:
• Stretch most things in height.
• Stretch walls and beams in length.
• Edit the slope of roofs. And sloping beams, columns, and walls.
These interactions use palette buttons, identical to the 3D window.
You still can't:
• Stretch objects in height. What a total, falling-down, drunken blunder.
• Perform conventional roof trims.
• Move slab or roof edges. Or edit roof edge angles.
• Copy elements other than openings.
Essentially, they are bringing 3D window editing methods to the section window. An unfortunate, but tolerable, side-effect of this is that we have lost the 'box' method of stretching doors and windows. You have to stretch the height and width separately.