I have meta-info (about a paper I'm submitting) that could help reviewers but can't go into the paper itself. For example, it may preempt questions like Why didn't you address the cutting-edge topic X? (The journal wants "cutting-edge" and is hard-to-get-into.) I expect this meta-info might save review time or even prevent outright rejection by reviewers. It's all in my submission cover letter, which the journal intends for the editor only.
Would passing meta-info to anonymous reviewers be appropriate? If yes, what of the following could work?
- In the cover letter, stating "Please forward any parts of this letter to reviewers at your discretion".
- Attaching a separate note to future reviewers.
- Adding temporary footnotes to the paper itself.
A better option?