PCG and Dynamic Mesh - Can I spawn a dynamic mesh on a spline at runtime?

I’m trying to build a cave system and my goal is to

1 - Draw splines in an area

2 - Spawn dynamic meshes along that spline and perform the necessary operations to merge it and flip normals

3 - Do all of that at runtime to create randomized tunnel systems

Numbers 1 and 2 are done, however, from my research I’ve mostly seen people using that method to then save the new mesh as a Static mesh and using it in their level, rather than spawning it dynamically. Does anyone know of a way to use it at runtime?