No probs, should be a quick and easy fix.
Seach for 'Add a circuit', items such as 180735526749 come up, and these take 5 minutes to fit nce you run some wire from the HU loom.
Best using a multimeter to find a switched live first if buying these, as there is a mixture of mini blade and normal blade fuses in that compartment - so you'd want to buy the right sized one.