quick sale button is not showing up on opera (or it may just be on mine)

[1un0]

(if I said something wrong or meaningless, it's probably because I'm using google translator)

[olokos]

same thing on latest Google Chrome 73.0.3683.75

[VanityFox]

So, Enhanced Steam is discontinued. There is now Augmented Steam. Perhaps your requested feature/bugfix is already implemented there! If not, you could move your issue there.