Considering that there is a possibility to play with keyboard + mouse (which I so far prefer), why is there no way to manage the inventory per mouseclick? Currently, I see no other way for selecting items and assigning them to an active inventory slot than solely using the keyboard. Thus I have to take my hand off the mouse entirely in order to do this task. All it needs is the possiblity to select items per mouseclick inside the inventory. Hope I didn't miss anything (ingame options, forum posts, ...) that might explain this.