Creating static meshes via c++, can they be displayed as they are created?

I am working on a C++ importer, which is creating anywhere from a few to a few thousand static meshes. It works fine, but I only see the meshes after the entire process completes.
Is there some way to have each mesh draw as soon as it is created (so the user can see something happening)

I am guessing you are building the meshes in a loop possibly in a constructor somewhere? I would think that means nothing updates until the import is done. Maybe implement the importer inside some type that ticks, inside the tick function.