A hot spot may be moved by selecting it and dragging. Selecting the hot spot will cause it to jump to the front most layer of the page. You can deselect it by clicking on the page, clicking on another item or choosing Deselect Hot Spot from the Edit menu.
To resize a hot spot, select it, then click and drag in the grow box in the lower, right corner of the selection.
Holding down the shift key will constrain the move or resize. (See “Shift Key” under “Special Key Functions”)
The arrow keys may also be used to move a hot spot.