There is a courtesy edit time on new posts of 60 minutes - after that they can't be edited (except by a moderator or Admin).  There is also now a draft option on posts so you can come back to it before posting (Drafts are kept for 7 days).   I've removed the duplicate post.

Hi I have my uh18 hoverwing , unfinished project listed in the for sale section of the site, under the heading make me an offer, but it appears to have listed twice and I can't figure out how to sort it. Does anyone have any idea how I can edit or delete the second listing ? Thanks for any help or advice .
John