If you would like to put the quick links you see on the demo in your sidebar widget then go to WP Admin, Settings, Sidebar Login and put the below links in your Logged In Links area:
You will need to change the domain.com to your domain. Save those and you’ll have quick links to those features in your Sidebar.
Keep this in mind, if you have your auction on any other page than home, then you might see those above give a 404 error. Just replace domain.com with domain.com/page/. That way it redirects the quick link to the page the auction is on.