After you have complete the
Animation Wizard you can edit further settings for your Animated GIF.
You can see all the current images in the Animation. You can add or remove images by clicking on the Delete Frame button or Insert Frame button.

You can move the images up and down the list by clicking on the Move Frame Up and Move Frame Down buttons.

Frame Properties.
Delay: The amount of time between each frame.
Disposal: This is how the previous frame should be treated. Default is Background which makes the previous frame invisible.

Animation Properties.
Loop Forever: This will be an infinitely looping animated GIF.
Play # Times: You can choose how many times you want the GIF to loop.
Transparent Color:
This is the color that will not show in the animated GIF. Choose Select Color to select which color you want this to be. By default this option is on, and it automatically selects the color in the absolute top left of the image to make transparent.
Note: If you are using regular photographs you probably do not want a transparent color, so simply uncheck it and it will not make any colors transparent in your animated GIF.