Add a "Create" button to a lens (or alternative suggestion).

Is there a way to add the "Create New" button on a Lens? If not, is there another way to do what I'm trying to achieve ...

I have an 'articles' table which holds posts that can either be 'news' or 'guide'. I've made a lens to show these two categories as separate pages, but because they are lenses (I presume) there is no "Create New" button on them. I guess this is because Nova cannot know which resource to create a new row on if there is a join (or more) on the underlying query?