I love this tool, but I used it wrong. I started entering my wall measurements at 42 feet from the left, so they are too crowded and too far from the left.

I've searched the Help and the Forum and I can't find any way to move the whole plan to the left or to change the origin of the measurement system. Also, I need to change the scale (permanent zoom) so the room I am modelling is shown larger on my screen.

Can someone help?