@kgroneman - I had a look at the case, we were referring to the form I mentioned previously. While technically still true that multiple discussion styles share the form I'm not sure we need to do anything with it to do what you've described - as long as you're OK with the component being above or below the editor form.
In this case, you'd just need to create a custom page to override the PostPage, e.g. PostPage.ideas, and set it at the Node level admin of the idea exchange you'd like to change. This is an example of what I mean from my test environment:
For reference, the documentation on this lives here:
https://community.khoros.com/t5/Pages-and-layouts/Override-a-default-page/ta-p/108961
Please let me know if that helps or if you have any questions.
... View more