I would like to show the ‘Appearance -> Widgets’ menu underneath the text field in ‘Pages -> new/edit’. Is it possible to take one part of the admin and show it elsewhere?
Reading some of the answers, it seems this question get’s misunderstood. I’m looking for a way to show the widgets admin on the page edit admin screen.
If I understand well your want to show the widgets adding and removing interface inside a meta box.
An easy, -a little dirty- way is using an iframe:
Note that only users who can see widgets will view the widget metabox, e.g. editors will not see anything, unless you give them the
'edit_theme_options'
capability.Yes it is, and this can be a very handy feature. The ‘hiding place’ for widgets is one of the least intuitive designs of the WordPress backend, IMHO.
You can use a plugin such as: Widgets on Pages
Or perhaps a more up-to-date one such as Widgetize Pages
Or you can build code yourself and place it elsewhere in the admin (such as the dashboard). A tutorial like this should help in that pursuit.
Or you can use the legendary Advanced Custom Fields plugin and create one or more of your own optional/compulsory ‘widgets’ that can be added to any individual page.