Could anyone help me to understand how to set up the following specs on a double facing page layout? The doc has a cover, then a double facing page, then a back cover.Page Trim Size: 8 3/8'' x 10-7/8''Bleed Size 8 1/2 x 11 1/8Live size: 7 7/8 x 10 3/8many thanks as I'm pulling out my hair over this and I think it's much simpler than i ...