What I've done before is take a partially formed idea and found a story form that felt close. Then I took the story appreciations and tried to write a description for how each of them applied to my story. Unfortunately, I wrote multiple paragraphs for many of them, but a sentence or two should probably work. When I got to something that I couldn't figure out, I tried to decide if it worked for my story and I was just having trouble figuring it out, or if it just didn't belong in my story. If I decided it didn't fit, I would try to change the engine setting to fix it. Then I would start going through the new story appreciations writing about how they fit into my story.
This took me through probably a dozen story forms or more, and sometimes the changes wouldn't be small. I might switch whole throughlines around. There were a couple times I thought I had the right story form only to get close to the end and decide something still was just a bit off. So it was a long process, but I was eventually able to smooth out all the wrinkles and find what I think now is the correct story form for my story.
While it's not always fun to start over with a new story form, its a much better feeling to know you're writing about what you want to say and using a story form that will help you do that rather than to be writing about some argument that's not really what you want to say just because you have a skeleton already outlining it. And a large part of the beauty of how Dramatica works is that if you start out with a completely wrong story form, your still encoding the appreciations to fit your story. So if you get halfway through encoding a story form and decide to change it, all that work you did is not lost. Even a drastically different story form can still use most-if not all-of the encoding you've already done. You will just needs to twist it a bit to fit the proper perspective of the new form.
Now I realize that in my first reply I said you wouldn't want to twist the story you already started to fit any random story form, but now I'm telling you that you can gradually twist your story through multiple story forms until you find the right one. This isn't a contradiction. The difference is that if you start out with the story you want to tell and twist it to fit the wrong story form, then you're abandoning what you want to say in order to fit what you have a guideline for. You're twisting a story with the right perspective on the problem ("the right perspective" being the one you want to tell your story from) to have the wrong perspective. You're twisting a square peg to fit into a round hole.
But if you start out with the wrong form and fill it out for your story, then change forms and twist your story to fit a more correct form, then you are going from a story with the wrong perspective to a story with a more accurate perspective, until you finally get to a story with the right perspective. You are essentially untwisting your round hole into a square one to fit your square peg, if that makes sense.