Per-component visibility/collision toggle gated on bounds-min Z vs (AnchorZ + Height). Snapshotted before mutation and restored on disable, so the feature is non-destructive. Wired into the toolbars of both Slate widgets and exposed as Blueprint methods on the UMG widget. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>