Yes, in your collection you can change the folder on any item in your collection.  You click the folder drop down on the item and then select the new folder.

We support this now.  

We are adding these sets to the site now.  They will appear in about 24 hours with more sets coming soon after that.

Added now.

https://www.pricecharting.com/console/1967-leaf-star-trek?uid=G95645

Some users can do this after earning contributor privileges.

https://www.pricecharting.com/add-product

Sorry, I don't understand.  Can you explain the question a bit more?

Sorry about that.  Added that set now. They will all show up in about 24 hours on set pages.

https://www.pricecharting.com/console/comic-books-robotech-genesis-the-legend-of-zor?uid=G95615

Sorry if this slipped through the cracks.  Added now.

https://www.pricecharting.com/console/comic-books-bloodwulf?uid=G95612

Added now.

https://www.pricecharting.com/console/comic-books-adventurers

Do you want the shortened short to your listing on our marketplace or to the product page (with all the different price points)?

We do offer a shortened url to each product page.

https://www.pricecharting.com/game/12345

If you put the product ID at the end, that will redirect to the correct product.  It sounds like you have that in your spreadsheet so hopefully that is useful.