Click and drag answers to change the order, or select using ↹ Tab then move by pressing Space and the ↑ ↓ arrows on your keyboard.
changing the size of an object while maintaining the same proportions
flipping an object over a fixed line
turning an object by a fixed amount and around a fixed point
moving every point of an object by the same distance and direction
To pick up a draggable item, press the space bar.
While dragging, use the arrow keys to move the item.
Press space again to drop the item in its new position, or press escape to cancel.