I've been trying to do this, but the other way. So that a melee weapon has a ranged attack aka being able to throw it.
I have a normal melee attack as Action0, and I've tried Launcher(crossbow), Catapult(bow), and ThrowAway(grenades) for Action1 and nothing works like I want. Launcher and Catapult just give me NREs, and Throw Away more or less works, but I don't see a way to attach damage to it, unless I make it explode or something.
I know it's not what you asked, but it is in the same vein. So far, I'm not sure it can work. I might try adding a melee to Action1 for a pistol or something, just to see what happens.