Collapsing Categories Plugin In Add New Post Page

Hello,

Is there a plugin that allowes me to collapse the categories in the category box on the right of add new post page – by clicking the parent category reveals the children etc?

I have a large number of categories and sub-categories, and when I write a new post it’s difficult to choose the categories and sub-categories that match my post.

Someone out there must have already solved this issue, finding a way to collapse the categories and sub-categories in the admin’s add new post edit page.

Thank you