To create favorite products first click your inventory tab.
Now, choose which product you would like to make a favorite. You can either search the product in the search bar or choose it from the list on your screen if you see it there. Remember, if you don't have the product in your inventory you can still retrieve its information by UNchecking the box next to "Only Show on Hand."
Once you have chosen the desired product click on the name of the product that is written in blue. You will be given this information box.
Notice the star next to the words "View Product." Click that star, it will become yellow.
Now look at the catalog along the left side of your screen and find the category "favorites." Click there and you will see any products you have starred to be your favorites.