1. You can scroll across the battlefield via the arrow keys right now.

2. Each character have their own carrying weight, lucky charm and barter skill, hence why the separate inventory. You can't very well have an "over-burdened" character if everyone shares one bag. Also, since this is a coop game, a shared inventory would be nightmarish (imagine 2 people clicking on the same item).

In the meantime, why not organize your inventory as you receive it or only have certain characters pick up loot. E.g. Jahan can hold crafting, your main 1 can hold extra equipment, your main 2 hold food ingredients, etc.

3. Don't know what to say other than that you are going to have a bad time...

Anyways just remember the recipes you care about? There is really no need for you to make 15 constitution belts so once you make enough you never have to touch the recipe again.

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I don't know if the devs are making any changes regarding the points you complained about but I doubt it. The system has been consistent since beta...