Ideas for ranged items

Ranged items are a pretty big part of my mod and i would love if mcreator added some features to them like:

1. Chargeable weapons

I imagine us being able to put time needed to hold the mouse cursor in order to release the bullet.

2. Cooldowns

Basically time between each bullet fired

3. Bullet speed

How fast the bullet moves

4. Bullet gravity

If it is affected by gravity and how fast will the projectile fall down.