Remove a Category
If you find yourself with too many categories you can always trim them down. Deleting a category starts off the same as editing one - double click on the category you would like to delete. That will open the details for that category.
Select the Delete option in the bottom left. This will open a new window to select which category you would like to merge the deleted category into.
Once you've selected a category to merge into select Continue Delete to finalize the deletion of the category.