Marotte

Well hi, new here at the forum and to the game.
Im actually still using the trial version, second day, and i stumbled here.
So my question is, you said to buy stacks of 10. Do they automatically stack up if you buy ten? because i couldnt afford 10 of whatever i bought earlier, and since i could only carry 1 recipe, i had to make 6 trips...
i can buy 10 now, since i made a profit, but i didn't see any buttom to get a stack of 10.