Install Volume 1
Open VoxelHitPack_Vol01.uproject in UE 5.8. The shipped content root is /Game/VoxelHitPack_Vol01.
Follow the installation and migration guide to move it into an existing project. Keep its dependencies and unique content root.
Open /Game/VoxelHitPack_Vol01/Demo/L_VoxelHitPack_Vol01_Demo, then press Play. You should see all 104 examples replaying automatically. The Overview map also displays the complete gallery.
Continue to your first effect.