Utility Case updated inserts

I needed a full length insert to fit a specific tool, but still have organisation space. Ended up with a few versions so sharing as they might be useful for others! Will fit all versions of the Utility Case, I have the Double Decker and the Low Boy.

No supports needed, print as per original instructions. 

Resized the inserts for the Utility case, combining the original trays and the full length version by @FoundLost, and a few variations on them.