Have a way to easily increment /decrement values.
It would be better if you could quickly add or subtract from an existing quantity such as the number of a particular item in an inventory.
I need this feature too.
Connecting it to the barcode scanner would be DOUBLY good! Scan it, then let you choose to increment/decrement and have it update the quantity. That would be awesome.
Andreas Hägglund commented
It would be even better if you could add/subtract straight from the list-view or the card-view, i.e. not having to open/edit the post first. This would save me a lot of time. This is possible with string-values.