Use standard infill for the bulk of the support structure, but switch to a dense infill right below the model surface to save material while maintaining a perfect finish. Intelligent Visual Simulations
The 4.1/4.2 update cycle was massive for users with machines like the Ultimaker 3/S5, FlashForge Creator Pro, and other dual-nozzle systems. Simplify3D 4.2.1 -Multi- full version