Followings are commands in View menu. 

Shrink To Fit

Shrink images to fit the window size when they are bigger than window size. 

When not selected, images are shown in original size. 

100%/200%/400%

Select percentage of magnifying images. 

You can also use + and - key to magnify and shrink when the captured image has focus.  For more information, see Editing by keyboard under Editing Images. 

Show Controls with Blue Borders

When selected, image parts are shown with blue frame which Click! Recorder recognized when captured.