Select, move and duplicate clips
Press V to select clips. Click or drag to select and move items; use Ctrl+A to select all timeline clips. Ctrl+D duplicates the selection.
Ctrl+C and Ctrl+V copy and paste timeline clips when no Graph Editor keyframe selection is active. When keyframes are selected, these keys copy or paste keyframes instead.
Press H to pan the timeline. Middle-mouse drag is available without changing the active editing mode. Press C to cut where you click or use Ctrl+B at the playhead.
Ctrl+G groups selected clips, and Ctrl+Shift+G ungroups them. Press Escape to return from the Cut or Move tool to Select.