Move the mouse pointer over a point, curve or section guide curve, and tap the <I> key to display its measurements in a list at the top left of the display window.
<[/]> - Step Section Position
With the mouse pointer over a section guide curve, use the <[> and <]> keys to step the cutting plane back and forth along the curve. Use <Shift-[> and <Shift-]> to step by larger increments.
</> - Set Section Position
Hold down the </> key and move the mouse pointer along a section guide curve to position the cutting plane interactively.
<|> - Find Section Min/Max
Use the <|> key to search along a section guide curve to set the cutting plane at the position of maximum circumference. Use <|> again to then search for the minimum circumference position.