Is someone working on a mod that will increase stash boxes, there is a mod called stasher. That increases columns in each stash boxes its not enough, I want a mod that give more stash boxes downwards. And each box has two more tabs, that is what stasher should have been, the person that made stasher can make a newer version with that so do it.
You should post suggestions in the stasher mod thread, you might want to word it better, because it reads like you’re demanding they do it, and if you read the thread you’ll see how much effort it took to make, so currently the chances are slim.
There are tools available which will give you unlimited stash right now, if stasher isn’t your thing then may be you should check them out.