I was wondering if there is some mod that works like Plugy did in Diablo 2, enabling infinite stash pages within the game. I like to hoard A LOT, all kinds of items, and by my third 85 level character I had to create a lot of mule characters because the amount of items was inmense. I was using GD Stash but quitting the game to manage the items is quite tedious and it breaks immersion, it is not a bad tool, but I prefered Plugy much more. I dont need auto-sort or loot filter, by just having infinite stash pages im sold.
(sorry for bad english)
i’m sure an infinite stash mode does exist, hold on.
this should be it : http://www.grimdawn.com/forums/showthread.php?t=23414
edit : it’s not ingame though, you place stuff in the stash ingame but you have to open the java thingy to check it out.
You don’t have to quit the game to manage items via GD Stash. Just use the shared stash as “exchange box” and make sure to have the shared stash closed ingame while altering it in GD Stash.
I don’t think any of the stash mods are “in game” as you want. Grim Dawn Item Assistant is also accessible while playing, but you need to hit Alt+Tab to exit the game, move items from the Assistant to the stash and then go back to the game again. It will take items directly from the stash though without you doing anything other than put them there and walking away.
Iirc correctly the devs have said extra storage space will be able to be bought in-game when the new expansion comes out, but still waiting to hear when that will be.
From what I heard, it will be far from infinite though.
No it won’t be infinite. But every little bit helps. 
Thanks for the answers, im hoping the expac will bring at least 4 or more stash pages for hoarders like me, but still,
is there a possibility for modders to create such a mod? does GD supports editing his code and game files to support this?
(sorry for bad english)