1 Item Bingo Card - Add "Set Price On All Items" to Merchant's Tabs

like we have in Premium Stash Tabs.

Now doing this takes too many clicks.

Apparently using Ctrl+right click after posting one item just puts in items for the exact same price as you set on that first one, so you can for example post 1 map for 4c then ctrl+right click a full inventory of maps and they instantly go into the merchant tab and get posted for that same price.

I wish the game would actually explain important hotkeys like this in some kind of tutorial lol, why do we have to go out looking for these things in 3rd party websites or videos outside the game?