Selecting category in menu item

Hello,
I don't know if there was this request earlier but after using eDocman for managing and linking to menu items more than 430 categories, I found very inconvenient that if You create menu element and select it's type to, for example, category layout You have to scroll through the dropdown in search for the existing category. What I would like to request is changing it so it'll look like selecting the single article menu type where You can choose category, edit it when it is selected or create it. This way creating links to category will be much more convenient and allow to create menu item AND category on one screen.