Animation playback control keys

Use the following keys to control animation playback in FCheck.

Windows/Linux	Mac OS X	Action
comma	comma	Plays animation backwards continuously.
period	period	Plays animation forwards continuously.
space	space	Pauses the animation. Press again to resume.
+ ,		Sets current frame the starting frame in the animation.
+ .		Sets current frame the ending frame in the animation.
+ ,		Plays animation backwards once.
+ .		Plays animation forward once.
-	-	Slows down the playback speed of animation.
+	+	Speeds up the playback speed of animation
right arrow	right arrow	Proceeds to the next frame after animation is paused.
left arrow	left arrow	Recedes to the previous frame after animation is paused.
+ right arrow		Proceeds to the last frame in the animation.
+ left arrow		Returns to the first frame in the animation.
s		Cycles through animation forwards and backwards continuously. (Swinging)
t		Plays animation in real time, skipping images if necessary.