Genesys RPG swapping characteristics

In recent additions to the Genesys RPG by Fantasy Flight they added ways to swap out using Brawn for your melee weapons and instead use Agility. This is a feature on the SWRPG system sheet by Fantasy Flight for the Lightsaber Skill, is there any way to port it over to Genesys RPG as well? Creating custom skills doesn't work as you can't tie a weapon to a custom skill.

That would require someone directly edit the Genesis RPG sheet. You could look at the sheet on the repo, and find the sheet editors, and send them messages asking for this feature.