For some reason, the line tool has stopped displaying the line when I draw it. However, if I draw a rectangle without the benefit of displaying the individual lines, it will display the rectangle with the push pull tool to manipulate. The rectangle tool appears appropriately. I opened another file where the line tool works right. I close and opened the problem file. Still had the problem. It must be some setting I do not know about.
I ran into another problem. I had made a ground group using the sandbox tool. Suddenly, I noticed it was gone after editing the interior. My theory is that I deleted it inadvertantly while editing the interior. Because I had a lot of editing after I discovered the loss, I figure I should just redraw the land shape. Is there a way to lock a group so that it can not be inadvertently deleted?