I'm currently laying out a document which is single pages using a single-page master page.
I need to turn the master page I'm using into a two-page spread. Changing the document setup to "facing pages" still leaves me with the single-page master replicating across all the pages, when I what I also need is to change the single-page master into a two-page spread master so that I can have my page numbers showing on the outside corners.
Duplicating my "A-Master" page simply creates a second copy called "B-Master"; I can't seem to be able to drag it alongside my original master page to create a spread.
Is there any way to do this at all -- besides creating an all-new document and dragging all the content from the original document into it? I suppose I could do this if there's no other way, but it'd be a huge pain.
Using ID CS6 in OSX.
You'll first need to change the document to facing pages.
Then create a new master which should be left and right facing pages. Set it up the way you want.
Then from the Pages panel menu choose Apply Master to Pages, and enter the sequence of pages you want to apply that master to.
Select your master page A, and chose Master page options. In that dialog, you can change your Master page from 1 page to 2.