Understanding parameters of Category Limit

especially the box with Category names within it

This is category selector. It could be simple multiple select element. But у know that sometimes there may be a lot of categories. So we created ajax category select. You navigate through it by clicking category name and add category to exception list by clicking + icon.

You can also see our forum pack and how types are configured there. In topic type the private support category selected and set as restricted and in ticket type the same category as allowed.

ok i think it is best for me to see an example so i might install forum pack to see a practical example.

thanks for your time