Yes, it's actually pretty easy. Look in the macro tab, and create a Rollable Table. Put the images you want to use for the token in the rollable table. Then when its saved, click the Token button and it'll add a token to the desktop which has all the pictures stored in it. You can rightclick on the token and select Side, and change the displayed image. Just add this token to your character the way you would any other, and you can change the token's look whenever you like.