Edit master, apply to page without deleting page's overridden objects
Apologies for asking a question that has surely been asked many times before . . .
I have a book - straightforward, all just running text throughout, no image boxes - whose margins I've decided need changing. I've changed the margins on the master pages. I want to apply them to the existing pages of the book. When I try to do this, the running text box I've set up in the master pages completely replaces the text boxes on the pages of the document. Usually. Often. Not always. I expect this has to do with overridden master text boxes, such as those I've changed the depth of to bottom out spreads, etc.
How do I get around this?
The thing is, I've done this before but I don't remember how I did it. (I'm a terrible planner, I admit it, and worse at taking notes when I've solved a problem.) In my memory, I did have to move the existing text boxes pretty much one by one to match the new margins that came with the re-applied masters. But I hadn't lost my text. If the running text box hadn't been tampered with at all during paging, it simply magically fit into the new margins. If I'd overridden it to adjust page depth, then I had to scootch it to match the new margins. But I didn't lose a filled text box.
I hang my head and ask what very simple step I'm skipping here. A screen shot of a typical master spread is attached.
Rob

