It has already been discussed that the new camera angles don't allow for classic point and click movement. When you see the room from above, like in old games, it works fine. But when you see things from a lower angle, like a movie, you just don't see the floor, thus making it impossible to click on it to move.
I agree on the inventory. Combining items should be as simple as picking up an item and clicking on another item. THAT'S IT!
Also, what is SWOS?