I teach in a tech school Graphics program, so most of my day-to-day life involves instructing beginning professionals in layout and design. Being able to keep all parts of the same job in the same file is not only a highly efficient/practical solution but would also eliminate those many lost files orphaned from their cohort buddies.

For too long, I’ve been telling my students, “the only way I know of to ultimately join documents of mixed sizes in the same file is to go the PDF-route.” (Most beginners just are not yet ready to face making booked publications.)

Alas…
now, if ONLY I could have the _other_ thing I’ve always wanted: better control over the document grids. For example (1) to be able to view (hide/show) the page layout grid on the pasteboard only and NOT on the document pages. This would be _such_ a help in making sure images were appropriately sized/cropped early on in the layout process (do it on the pasteboard, then move them to specific pages). And for copyfitting…

And while I’m dreaming… (2) to have page layout grids associated to the master pages to more easily determine which grid would be the best for a given publication/layout. That is, I want the grid (“graph paper”) prefs to be NOT document-level, but specific to masters I’m using, both on the page and off it, on the pasteboard. Ruler guides on multiple masters will do this _on_ the page, but not _off_, where I find the concept more useful.