If a remotely-located client is having a problem figuring out how to edit a post, it is frustrating as the post is locked and I can’t look at what they’re seeing. During training sessions, I’ve edited the code to add a clipping:

add_filter( 'show_post_locked_dialog', '__return_false' );

which gives a warning but allows us both to view the same post. But I don’t want it to be a permanent change and sometimes forget to disable the filter when we’re done. It would be nice to have an option to set/unset the filter, and to have an admin banner warning whenever it’s set.

I’m going to write something like this for myself but figured it might also be a useful addition to WP Helpers.