User interface woes

I'm getting confused by the checkbox at the bottom of the new story submission page, I think.

It's labelled 'Ongoing' but it also says "Click to mark as completed story", so is that a 'yes' or a 'no'?

I never submit incomplete stories, but a tick against 'Ongoing' appears to apply a flag called 'Completion'. But there's also a way to toggle 'ongoing' when viewing the story itself, so, uh...?

Very confused now. I would appreciate all my stories here showing up as a 'Solo', but it appears I've guessed wrong and can't now fix it? Here's hoping that 'From the Top' still qualifies for the current competition.