Dungeonographer, take 2

I tried making a map for this coming Sunday's To A Bloody Pulp game using Dungeonographer.    This time I tried to get it down to 2 pages by 2 pages, but miscalculated on the margins, and got 2 pages by 2 pages plus 5 more scraps of pages.    I decided to avoid drawing in walls and doors this time.  I know there's a way to "snap" the wall drawing to the grid lines somehow, but I haven't found it yet.   I decided to keep it as simple as possible.   This time I did make a 1-page DM's map/tape together guide when I made the main map.

I do still resent how much trial and error is involved in learning this thing, when it was billed as "intuitive" and "easy."