You’d want to get a reference to the character mesh(just drag one off from the blueprint tab on the left), then move the static mesh components to the desired location using the “move component to” location. But again that can cause issues like stated above with collision. The best way I’d think to do it it, would be to use the “get random point in navigable radius” with the character mesh as the source, this will avoid that point being placed inside meshes or the terrain. However if there is say a wall or prop in the balls path it would go through it.
What your trying to do could be done, but it would take more work than I’d think would be worth it when you can just use a separate class and AI controller to control the balls(enemies). Also, if these balls are eventually going to be enemies, it doesn’t really make sense to have them as components of the player class in my opinion