Make the Vendor "Sell All" button less easy to click
This button is insanely easy to press given how dangerous the action it performs is. I accidentally fat fingered it and it sold half of my inventory before I was able to stop it. I was able to use buyback to recover some of the items but that only allows you to buy back the ten last sold items, and the button sold a lot more than that. I've had to open a ticket with CS to try and recover the rest.
This button is useful for some situations like farming, but for the vast majority of other situations it is incredibly dangerous. There should be a confirmation at the very least and it should not be the most prominent and largest button on the vendor page.
On the discord, Gumdrops mentioned that it should only sell ten items at a time. If this is the case then the button is not working as intended, as it was able to sell a lot more than that for me.