I have a challenge that I posted which I'd like to put on hold while I refine it in sandbox. Is this possible?
I don't want to delete it because I'd like to recycle bits of it, and I'm guessing if it's deleted then I'll lose the work I've done/ there will be a time limit on how long I can still access it.
What can I do to make the challenge invisible to site users/ clearly not currently "open". Is there some way of closing it myself, or if not can people reading this please vote to close as suggested here?
Also, I intend to re-post after refinement as a different question and delete the original (is this acceptable?)