It's frustrating how you have a small button to interact with an object, which when you approach it moves and turns into a large one (center screen by default). What is the point ? I prefer to keep the button in one place, rather than moving the mouse to click it and have it suddenly disappear to another part of the screen. Also the big button takes up too much screen real estate, especially if you're not interested in pressing it. It would be great if we have a checkbox in options which disables switching to the large button all together.