To select several images at once, hold down the Ctrl key as you click on each image in turn. To select a whole series of adjacent images in an album, click once on the first image and, while holding down the Shift key, click on the last image in the series. Now you can move or copy this group of images just as you would an individual image.
Selecting multiple images
For more information see Moving and Copying Images Between Albums in the chapter on the FotoFinish Image Explorer.