Hello,
1. Oh I see. Sorry, but there is no such possibility.
2. On our demo https://8theme.com/demo/woopress/boxed/ – http://prntscr.com/lql7oi
I think the menu looks in the similar way in 2.5 version. If you have an archive of 2.5 version without additional customization in files you can install it on a staging (test) site and check.
3. Yes, only listing.
Regards