What problem does it solve? Collaborative documents break when multiple users edit simultaneously without coordination. This Skill provides evidence-backed implementation patterns for Velt's Single Editor Mode, ensuring only one user edits at a time while others see live-synced read-only content. ## Core Features & Use Cases - Exclusive Editing Setup: Enable Single Editor Mode with enableSingleEditorMode, VeltSingleEditorModePanel, container scoping via singleEditorModeContainerIds, and auto-sync for text elements. - Access Request Handoff: Build editor-side accept/reject flows and viewer-side request/cancel flows using hooks like useEditorAccessRequestHandler and APIs like requestEditorAccess. - Timeout & Multi-Tab Handling: Configure editor access timeouts with auto-transfer, handle tab locking with editCurrentTab, and subscribe to all 7 SEM event types. - Use Case: When two users open the same Next.js document page, the first claims the editor role automatically while the second sees a read-only synced view with a banner showing who is editing, and can request access that the editor accepts or rejects. ## Quick Start Ask the agent to set up Velt Single Editor Mode for your React document page with an editor status banner and live content sync.