How do I get all Instanced static Meshes in a level in a blueprint?

Hello;

I have a level in which a lot of blueprint actors are used to generate instanced static meshes.
I am trying to write another blueprint that will gather all the instanced static meshes and put down a copy of them as a regular static mesh. This way I can export a USD of the level that I can then load in other programs.

Does anyone know what blueprint node I should use to gather all instanced static meshes in a level?

Thank you so much for any time and help

I -think- the normal way to do it ( or the way I do ), is to include changing everything to static meshes as part of the originating BP.

Because you already have all the stuff you need in there. The ISM, and the instances.

Might be possible with an editor widget, but…