Thread:Penguin-Pal/@comment-4572079-20140212194210/@comment-4018164-20140212210248

The following JS seems to do what you want. It adds to the small popup window the current page content, and by modifying and pressing "Save" it would save your edit and close the small window until next time you use it.

You can add it to your personal js page in your wiki, or in your global js page.

Anyway, here's the script. Make sure to change the value of  from   to the name of your sub page.