This command selects rotation mode. In this mode, the scroll bars control the observer's view point rather than scrolling the view as usual. The horizontal scroll bar rotates the observer around the track along a horizontal circle, while the vertical scroll bar raises or lowers the viewpoint.
Tips
As T3ED is slightly slower in rotation mode than in translation mode, rotation mode should not remain selected as the default working mode when not necessary.
Raising the viewpoint to its top-most position can be very useful for optimal control of the Move XY tool. Conversely, lowering the viewpoint to the bottom-most position allows optimal control of the Move Z tool, but since it tends to produce a display containing lots of overlapping polygons, it is sometimes best to work with a slightly raised viewpoint.
