Thanks for the updates and continuing to make it better. I agree with @calbears though, seems to be some unintended consequences.
I almost exclusively add cards to my inventory through the editions functions. Now with all of the "Showcase" & "Extended Art" you could have 3 different versions in the same set. Now when you open the inventory of a specific card, it opens up all the rows of all editions you have, and if you save and close it, it changes all other editions to the card you are currently modifying. Previously, when you clicked the left box to add cards, it wouldn't not bring up all editions, it would only bring up the collector's number you were currently editing.
*note - the right box (for all inventory across all editions) still works as expected.
I will email you the workflow issue in screenshots.