Click and move the mouse to pan and tilt.

While panning, use control and shift keys to zoom in and out.

Alternatively, use the arrow keys for panning and tilting in fixed  increments.

Use + and -, or > and < keys to zoom in fixed increments.

Press the space bar to  make hotspots visible; repress to hide them again

While over hotspot, click the mouse or press enter  to jump to link.