It's easy to move or resize objects within a design. First click on the object you wish to resize, this will highlight the item with a dotted line with boxes in the corners, and midway each side. These are "handles" that you can grab onto to resize the object.
To use the "Handles" left click and hold, then "pull" in the direction you would like to enlarge. To move after clicking on object hover until a four way cursor appears, right click and hold while moving.