Of Course! If it makes SENSE to use "instances" of trees so that thousands can be used and render times DRAMATICALLY REDUCED- then the same applies to CLOUDS- whether they are Flight Sim 3D Box Clouds using Texture Maps- or 3D Procedural Clouds. Using "Instances" of Clouds is the LOGICAL FUTURE for E-ON. Volumetrics is best used for other Atmospheric and Lighting effects. Crowding a scene with lots of 3D semi-transparent and Fuzzy Clouds is a recipe for MASSIVELY Long Render Times. The "Pros" have already figured this out! With a Future Vue Cloud Editor, it should be possible to create lots of different special EFX Clouds, as well as set up FORMATIONS of Texture Mapped or Procedural Mapped Clouds and have VAST ECO-CLOUD SCAPES with GREATLY REDUCED render times for clouds Instances that "appear" as Volumetric in the final render.