I want to combine these Categories. Is there a way to do this with out doing it one by one.
What do you mean by combine?
None of these categories has any files assigned. You can just delete them and create a new category instead.
Yes I know but I wanted to put them together first.
A category without file assignments is just an empty container with a name.
Select them with Shift+left-click, then delete them.
Then create a new category.