Suppose, you submit your report to a boss and he asks you to add more chapters or sections to the report. However, you don't want to do that because you believe the new content would be too much and they qualify for being in a separate report.
Now suppose that you want to say or imply that this request sounds like a new report. How would you say that politely and professionally? I don't want to tell this very formally though. That's why I asked this question to know how you native speakers would phrase this.