What are these 3 strings in this blueprint

Hello

This will probally be the most nooby question but im learning UE4 and mor e specifically bullet physics using this tutorial: Unreal Engine Tutorial - Bullet Physics / Projectile Physics and Penetration Part 1/5 - YouTube

Now on part three there is a part where he assumes you know C++ well which i do not and i followed everything p untill this point as i can not fiure out what these 3 strings are in the image below . Everything else im fine with so far :slight_smile:

120762-capture.png

Here is a link to a bigger picture of the whole code:

Any help with this is really cool :slight_smile: Thanks in advance!

ProjectileMovement is a ProjectileMovementComponent, Dragged of that is the Velocity and the Initial Speed variables. If you select your ProjectileMovementComponent, those should be visible in the Details. Hope this helps.