Hey Guys,
Great little plugin. May I suggest that you make the plugin add some zeros to the menu_order meta that is saved?
This would allow people to manually adjust the menu order by setting a number in between what was set by the plugin. This is super helpful for new pages.
For example, your current plugin sets the menu order like this:
1
2
3
4
5
Which makes it impossible for a user to manually set the menu_order of a new page to be right after 3 for example.
But if you made the plugin set it like this:
10
20
30
40
50
A user then could set the menu_order for a new page to be 31.
https://wordpress.org/plugins/simple-page-ordering/