Hyper-detail: split-up, ISO fasteners and Inspect

Split-up unscrews fasteners, moves subassemblies out and lifts parts off their mounts. Fasteners come from ISO tables with real threads close up. Double tap opens the subassembly menu, triple tap the product menu: Inspect, Split up, Isolate, Section view, Zoom to fit. Inspect shows role, material, mass with fasteners, physics issues and a fastener BOM.