include templates for categories (e.g. template for noun categories, template for verb categories); this may be best implemented as explicit instructions on category-building
put documentation notes into the .ccg file to show up when user hovers over category in GUI
tutorial should include instructions for building grammars from scratch and for modifying existing grammars
to address use of expansions in grammar writing, first walk user through a number of parallel examples (brute force it) then demonstrate how these could be more easily implemented using expansions