Constrain to the Z axis

that’s how i do it to… ‘V’ is my alias for Line Vertical… and i’ll use that even if needing a polyline with a vertical element …then just join afterwards.

it’s fine and fast enough for me now… but when first using the application, i didn’t come across that immediately and it took a little getting used to explicitly calling for vertical movement… it’s fine now but i do think it could be improved upon.