Quick start
• Scrub the red playhead in the Timeline. Space play/pause.
• M split at cursor.
• Drag tags onto a section (adds tags + auto-blocks) or onto a track label (adds track tags).
• Resize section length: drag the left/right handles on the section pill (or drag the marker split line).
• Track settings: click the track label or ⚙.
• Resize blocks by dragging edges. Drag blocks to move. Double-click to rename. Del: delete selected.