UPDATED

The other method is to right-click the control, and then choose an option.
Context menu for the LookFrom control
The difference between Isometric Mode and Twist Mode rotating the 3D viewpoint:
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Isometric mode is like the Viewpoint or View commands
Twist mode is like the RtRotF (3DOrbit) command
The green dot indicates the cursor position, kind of like a laser pointer:
Left: Isometric mode
Right: Twist mode
TIP
When in Twist mode, click the center of the LookFrom control to return the view to its home view.
DIFFERENCES IN SELECTION SETS
You can assemble complex selection sets in BricsCAD through entity location (pick, Window, Crossing,
and so on) and/or properties (color, linetype, and so on), as in AutoCAD. Many actions are the
same between the two CAD programs, such as pressing Ctrl+A to select all objects in drawings. Like
AutoCAD, BricsCAD makes sub-entity selection of 3D objects: faces, edges, and vertices.
Like AutoCAD, BricsCAD uses colors to report to the user whether the current selection set is a
crossing, window, or other. Unlike AutoCAD, however, BricsCAD also displays icons, as shown below.
(The closest AutoCAD has to these icons are cursor badges, which show which command is effect.)
BricsCAD uses colors and icons to report the style of a windowed selection:
Left: Making a windowed selection.
Right: Making a crossing selection.
68 BricsCAD V17 for AutoCAD Users