Infinite runner more blockers

Hi, i am trying to make a infinite runner by following the official ue4 tutorial. i am new to ue4 and i wanted to ask: how can i add more blockers? in the tutorial there is only one blocker (SM_rock) but i want to add different blockers that randomly spawn.

Hi!

1 Create new actor BP BP_RandomBlocker with StaticMesh component.

2 Add variable array Meshes with type StaticMesh.

3 After compile BP, you can add meshes. And not forget add collision to blocked meshes. And add Death event.

4 Open BP_FloorTile->SpawnBlocker and set BP_RandBlocker.

Check out my template for more advanced Endless Runner:
https://forums.unrealengine.com/unreal-engine/marketplace/1580543-endless-runner-shooter-template