Drag empty spacePan around the timeline canvas.
Ctrl/Cmd + scrollZoom the timeline horizontally.
Drag sidewaysMove or resize elements in 1-second steps.
Shift + dragMove/resize in 5-second steps, and snap element edges to other elements.
Drag up/downChoose the manual lane/top-bottom position of elements and subelements.
Overview barDrag the viewport to jump through the full timeline.
Overview handlesDrag the sides of the overview window to zoom in/out.