Hi, thanks for thinking with us :-).
As you know I change the order of pages in backend with Simple Page Ordering plugin.
This plugin does not change the post ID, but it does change the order:
Is that the parameter you are going to add? And subpages can have the same order value (but different value), so the boxes for subpages will check first what order value the parent has to determine the order to show?
Page A (order 1)
- Page B (order 1)
- Page C (order 2)
- Page D (order 3)
Page E (order 2)
- Page F (order 1)
- Page G (order 2)
- Page H (order 3)
Showing boxes for pages B,D,F and G will list like:
- box 1: page B (parent order 1, self order 1)
- box 2: page D (parent order 1, self order 3)
- box 3: page F (parent order 2, self order 1)
- box 4: page G (parent order 2, self order 2)