remove sidebars from Post Editor

I completely agree that plugins in general should not add elements to other screens, which is also the main reason the feature didn’t come before now.
That said, I keep testing how to make sidebar management easier for the users.

Currently you can only hide the box in the Screen options section, but I will make it possible to remove it entirely in the next release. Hopefully that will be out next week.

Can I ask how many sidebars you see in the box? It should only be sidebars created by the theme.

Off the top of my head around 40. We’re a big site with 140 writers.

Are those 40 sidebars all created by the theme, or do you use another sidebar manager in addition to Content Aware Sidebars?

In the next version, only 3 sidebars will be shown in the box by default, and the user can then expand it to show more. You will also be able to remove the box entirely with a script.

In version 3.3.1 you can use this code in your functions.php file to remove the sidebars meta box:

remove_action("admin_init",array("CAS_Post_Type_Sidebar","initiate"));