I often schedule threads ahead of time and occasionally, I would like to have the first "reply" posted. For example, the OP is an intro to something, and I want the first post (after the OP) to be my contribution.

As an admin, is there a way to do that? When I have a scheduled post, I see " Comments are disabled for future topics.". Is that a typical behavior or is there somewhere I could change that?

There would be no way in which to do that at present. This is intentional in the current design. I have moved your topic to our feedback area for future consideration.

https://www.sosinvision.com.br/index.php?/file/292-scheduled-comments/