I am unable to find any plugin that improves the usability of the Categories in WP Admin, and in particular in Appearance\Menus, where the tree is completely destroyed, so you cannot even see the relationship as you do in Posts where all categories are listed in one go, and thus also all relations are intact
I currently have around 1400 posts, and naturally many categories.
In Menus I need the ability to select a category tree and/or all items on a level in the tree, for instance. With the default implementation I have to click every single category, and also deselect, which is incredibly archaic. The worst part is that I have to remember the relations and tree structure, as they are not displayed at all here!
How can I achieve this, or which plugin provides this?