Melee and ranged weapons at the same time

You can define melee damage of ranged items in MCreator 1.9.1. Make a sword of type ranged item and set itself as ammo and as a bullet so it becomes throwable.

I think he wants to have Melee damage separated from Projectile, something like a musket with a small knife attached 

This is what I meant. The melee damage controls the melee damage of the item shooting the projectile, say a musket.

Don't understand, please give us some screenshots?

I think that Klemen means that the bullet damage is the usual bullet damage, while the melee damage is what you do by left-clicking

Like a Trident

But if it could be thrown, then picked up (even if it hit an entity) and it retained the durability, then it would be perfect

Yes, I will open a ticket for ranged weapons that can be picked up.