I think we need to change the wording for how we unlock stash tabs. We can unlock up to a max of 12 in the following way:
6 are unlocked via gold purchase in game.
2 are unlocked via purchasing the Necromancer pack
4 can be unlocked via completing all objectives up to and including Conqueror in seasons at a rate of 1 tab per season. If you miss a season or don't complete conqueror during a season, you can try again next season up until the max of 4 tabs unlocked via seasons is reached.
It would be nice to have chance to complete the third column and tabs to 15.
Indeed. I'd be happy for the remain 3 to be added to seasons... even better if they're rewarded retrospectively for those of us who had unlocked all seasonal tabs in S8 yet still did conqueror in S9 and 10... but I doubt they'll do this. I'm guessing we'll get to buy stash tabs via the new in game store at some point... which is probably a better thing if we can buy a pack of 10 tabs or something.
Now they just have to fix the interface. Having to click those 2/3 top buttons to open this page of 5 stash tabs is just plain annoying and useless. Instead all stash tabs should be aside the stash...
Yup. Not saying your solution is perfect - it still looks a bit clumsy to me, especially once you consider a 4th and 5th row - but better than the current implementation. It's such a mess, and the biggest piece of evidence that there is no interface design expert in the D3 team (or his/her input is dismissed).