I read that I can release sidestories after I complete a Webnovel story. I actually have completed a story and am looking to release a side story. I've already written and published the first chapter of the sidestory but I am still unable to click on the "side story" option when I look at my story and it says "not supported yet." This confuses me because I already completed my story and put it in the completed category (which is supposed to be a prerequisite to posting a side story).
I'm not certain what the category will even do, but I'm think it would add a link from the main story to the side story. Perhaps this feature just isn't available on Webnovel yet?