Evenly Distribute Spline Meshes Along Spline

But how do you manage to set the input keys? Did you do it through C++?
In the blueprients functions for Spline I only see Find Input Key Closest to World Location and Get input Key at Distance Along Spline.
I wanted to play around with the input keys, but I don’t know how to modify them. Going into C++ seems too much of a hassle…