So, I am new here and had a quick question
If your friend has a user account, you can just go up to the button near the top that is labeled "Write." That takes you to the author dashboard, where there is a new story option. Just fill out the form, copy in the story, and submit it.
A new story has to be approved by the site operators (formality, just to make sure no shenanigans or abuse actually make it on the site). Depending on when it is submited and what their schedule is like, it could be approved and public in as little as a few hours. I think the maximum is 48 hours.
From there, the author dashboard will have options including submitting more chapters and some analytics and overview tools to help manage the story.
Let us know when your "friend" gets their story up!
If its the latter, then no such feature exists on the site. You could review swap with other novels maybe, but other than that the only method is to regularly write and post
On a side note though, most comments in the first 10-15 chapters will be negative with trolls falling away after that, leaving you only with genuine readers. Hence why I locked comments on my first 15 chapters after I got annoyed, deleting all the hate comments I only left the constructive and positive ones.
I hope this helps!
Tl;dr buy an ad space and make sure to add "read on Royal Road as it's mixed in with other ads"