AutoCAD Inventor :: Libraries And Folder Structures

We've just made the switch from Acad to IV and I'd like to get some feedback about how to structure my non-vault single user projects.

Presently, our network drive setup is like this:

Working Files & Customer Prints:  Z:Customer Prints<Customer Name><Customer Contact><Description or PN>

In some customers' folder, I may also have a folder with a path like this "Z:Customer Prints<Customer Name>General Design" where I would keep things like mating parts, existing fixtures that new parts may need to mate with, etc.

Then I've also got a place for vendor CAD like this: "Z:Vendor DocumentsVendor CAD<Company Name><Part Types>" etc. for commonly used components, like tooling hardware.

In any project, I'd need to be able to access files from these directories.  So when I create a new project, I can obviously reference the workspace folder for the new part files and I can add the paths for the other two examples.  But if I need to quickly edit a file in one of the paths (like to show a work plane or something), I can't do it because library files are not editable.  Plus it seems like it's a bit repetitious to add these paths manually every time I create a project.  Is there a better way to do this with my current file structure?

Inventor 2014 64-bit SP1
Win 7 Pro 64-bit SP1