Sorry if this is a bit dim - new to the site, and can't seem to see a button anywhere?

Any help appreciated!

If you hover over Commerce > Your Shops, there should be a link to your shop's quickstock feature (qs) next to it. c: You can move things in bulk that way!

you will first need to create a shop. Once you have a shop, you will have a quickstock feature. The quickstock feature allows you to mass-Vault.

Thank you both so much!

you are welcome, and welcome to Subeta!