Hi Paul, I finally had a chance to sit down and test it out, and the problem isn’t happening for me.
Are you using the Move Pages command from the source doc’s Pages panel menu? That’s what you should be doing to insert pages from one layout into another. Just make sure that the dialog’s option “Delete Pages After Moving” is NOT checked. That turns the Move Pages command into a Copy Pages command.
When you click OK, the the pages are copied over to the source doc. Here’s how mine looked:
https://www.dropbox.com/s/53r1b80wc7auv8g/move%202.png?dl=0
I moved all 6 pages from my source doc (black text) to AFTER page 1 in my target doc (red text).
Here’s how the target (red text) layout looked after I moved all the pages from the black text to BEFORE page 1 of the red text:
https://www.dropbox.com/s/1m2wboa6dn9f7zh/move%203.png?dl=0
Note that the first page of the page/s from the source doc you’re copying over is always a section start. If you don’t want that, after it appears in the target doc you can right-click on that page in the Pages panel, choose Numbering and Section options, and uncheck the “Start Section” checkbox.
I cannot make it appear as an Alternate Layout if both target and source docs are showing pages Vertically or Horizontally before I begin the Move operation. Perhaps one of your layouts was showing Pages by Alternate Layout before you did the Move operation? I set my workspace to Advanced and then chose Reset Advanced to “clear the decks” and keep the Pages panel in its default, view Vertically state.
But if *after* I move the pages, if I choose View by Alternate Layout in the target doc, an Alternate Layout is shown for each section.