Final answer:
With the F8 tool active, CTRL + CMD Click on a region allows you to select multiple elements within that region.
Step-by-step explanation:
When you have the F8 tool (grabber) active and you press CTRL + CMD Click on a region, you can select multiple elements within the region you clicked on. This is useful for quickly selecting and manipulating groups of elements at the same time. CTRL + CMD Click is commonly used in graphic design software and other applications that involve selecting and manipulating multiple objects simultaneously.