Hi,

I am new to Sweet Home 3D, and am figuring out how it all works.

I have created some rooms, and seems to work fine.

However, on top of the screen, above the design screen, I see a lot of dim-dim-dim lines.
I can click the lines, and see some walls disappearing, but I cannot figure out what these lines are for.
They take up a lot of space, how can I get rid of them?

Kind regards,