Here is another view of your inventory in your packs, by category.
From this screen you can add, change or view your categories (on the left), and when you select a category, you will see all of the items for that category, along with the compartment and the pack the item is located in, on the right.
A nice feature of this browse is you can grab an item on the right, and drop it onto a category on the left and the item will be changed to be in that category. You must be able to see the category that you are going to drag the item onto when you start your drag. You may have to enlarge the program to full screen to see all of your categories.
Be careful on how many categories you add. If you have too many, you'll have less organization. That being said, make sure it makes sense for you, so later on if you're searching for something, you'll have a better chance of knowing what category an item is in.
Click on the Insert or Change buttons under the list of categories to access the category editor.
If you click on the Insert or change buttons under the item listing (on the right), you'll be able to add or change an item. Note: if you add or change items from this (the item category) point of view, the item category will already be added for you. You can change it, but better to leave it alone, less confusing that way.