How do people handle margins and gutters when designing a tri-fold brochure in InDesign? When a brochure is folded in three, the inside flap ends up being smaller than the other two flaps, so if I want things to align exactly, I can't just use the margins and columns panel and be done with it. You can see in this image how the automatic gutters don't line up with the fold lines that I have put in:
Do you set up your columns manually within your adjusted fold lines, or do you use the default columns and gutters, or perhaps some other method? I know I can accomplish this manually, but I'm just looking for the most straightforward way to do it.