Thank you.  We do not support selling lots on the marketplace at this time.  You either sell individual items or you sell entire collections.  Maybe we can add this in the future though.

Closing as a duplicate.  Please vote for the existing request.

https://pricecharting.userecho.com/communities/1/topics/1784-add-vinyls-as-a-new-collectible-item

We do not track values for memorabilia like Soundtracks and limited edition packins etc.  Sorry.

We have many of those sets already with full lists and some sets with the most popular cards.  You should look them up with the set ID (like CS4AC).  

We have this edition.  https://www.pricecharting.com/game/playstation-4/street-fighter-v-champion-edition

Is that what you are referring to?  If not, please include a photo so I can add correct item.

Sorry, I don't understand the question.  Can you word it a bit differently to help me understand?  Thank you

That is possible on the sports cards website already.

https://www.sportscardspro.com/contribute

Fixed in code.  The update will show up on the site with the next server update, usually about 24 hours.  Thank you.

Closing as a duplicate.  https://pricecharting.userecho.com/communities/1/topics/1002-add-games-for-mac

Closing as duplicate.  Please vote for the existing issue.

https://pricecharting.userecho.com/communities/1/topics/894-adding-a-friend-feature