Make a weapon use a different skill

[basselope]

Does anyone know if it is possible to create a weapon that uses a different skill? If so, do you know how to do it? I have been able to create every other aspect of the weapon and the skill and even an edge that relies upon the skill. I just can't get it to show on the character sheet as associating with it. Now, I know I could just print out the character sheet and put a line through it and write in the correct value, but I would prefer not to.