Just for fun, I tried using ses-mode inside org-babel. It didn't work for a new empty code-block, but if I pasted an existing ses-mode file into it, it did act

Just for fun, I tried using ses-mode inside org-babel. It didn't work for a new empty code-block, but if I pasted an existing ses-mode file into it, it did actually work. So you can have your org-mode cake and eat it too with ses :)