Could Layout get a visual “unsaved changes” indicator on the title bar - just a simple asterisk next to the file name, similar to Sketchup’s? Just a nice visual clue/reminder to save early, save often.
+1 - It’s a common basic feature these days. I know we have Autosave, but knowing that changes have been properly recorded is useful.
I was just thinking about this the other day. I agree this should be a feature.