Source Mode
With the source mode selected, first select the area of the image you want
to replace, and then drag that selection to the area you want to source. For
instance, to eliminate the golf ball in the image below, you would first
select the area around the golf ball, and then drag that selection around to
find the best source.
In source mode, first select the area you want to replace.
As you drag the selection around to find a suitable source, watch the
destination (i.e. your originally selected area) for a preview of what the
source pixels will look like in that area. Keep in mind that this preview is a