Accumulate items to shared slots
The shared slots are kind of like your bank — to move mats to the bank, you have to manually deposit them. I’m not against the idea, I just don’t think it’s a ‘fix’ — it is likely to be closer to a major rewrite of some of the code that handles inventory management.
i.e. high cost for something relatively easy to resolve in-game (where ‘high cost’ means we’d get fewer, other UI changes in order to make this one happen).
John Smith: “you should kill monsters, because killing monsters is awesome.”