Trying to automate publishing requests, so that once a user has modified a document he doesn't have to go through the publish steps. Since I have a publishing approval workflow I believe I could just create a new workflow that would start this publishing approval workflow for the document that was modified? Can't find a Start Workflow action tho?
Why don't you just disable the approval workflow mechanism? That way, you don't have to go through all those steps. Only check-in and publish the document. You can even configure SP to publish it immediately.