Unfortunatelly, you can’t edit terrain in runtime. Please visit https://forums.unrealengine.com/showthread.php?10457-Editable-terrain-in-game. There you can find some information about voxel terrain, which should be suitable for you.
Unfortunatelly, you can’t edit terrain in runtime. Please visit https://forums.unrealengine.com/showthread.php?10457-Editable-terrain-in-game. There you can find some information about voxel terrain, which should be suitable for you.