How to pass custom attribute from admin category page to List.php

Question

I'd like to find out how to set up an entry box, so I can pass a string written in it from the "Manage Categories" menu to List.php.

For example, if there's a string "variable_here" for "List Visibility" under "Manage Categories -> Some Category A", you can get this variable via $layer->getCurrentCategory()->getListVisibility() in List.php.

Under "Manage Categories" -> "Some Category A"

How do I add this "List Visibility" box?

Answer 1

Try using this post as a guide, mind the small bug answered in the comments on that post. I've also used this explanation myself so that might also be a nice source.

The actual adding of the attribute happens in the installer, it just requires the right resource model.

Both links are on Magento CE but, as far as I know this shouldn't be different in EE.