While Alinco technically stacks items that you get from vendors, it can be highly annoying. It won't allow you to sell peas, or other items that stack, (if the stack size exceeds what you can sell,) unless you uncheck the stacking feature, and then split them. And then of course, doing that stops the Pyreals/Trade Notes from stacking, so it really doesn't work well, for selling anyway, sadly.
I'd like to see Alinco allow you to set the items you wish stacked, just as it allows you to set the items to show in the Items HUD, and then you can simply disable them when you're selling, but it would still stack other things like pyreals, trade notes, etc.
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Ling Mei - Veteran Swordswoman

Lingie - Abu's Health-Addicted Support Mage
Directionally Impaired in AC since 1999
The sun itself sees not 'till heaven clears.