Ok so after extensive searching I have only found one answer to my question. You can not use VBA to auto assign a new item to a category. Which would be awesome but apparently the only way to do so is to do it the the UI.

So my question is, has anybody came up with or know of a simpler solution than having to navigate to unassigned items and manually adding it every time I create one. Its not that big of a deal but I run a command...