Mesh Terrain Modifiers at Runtime

Does anyone know if it’s possible to add modifiers to mesh terrain at runtime? I’d like to add a cutout around buildables the player can place on terrain so that the terrain isn’t inside the buildables, but I can’t seem to get it to work when the game is running. If I just place the blueprint in the level I’ve gotten it to work but it doesn’t work when playing. Also, I know mesh terrain is experimental right now so this might not be possible, but I thought I’d check anyway

Desired result:

When placing the blueprint at runtime: