In the Menu Bar, click Edit > Preferences, then on the left side of the dialog box, select Selection.
Bounding Box Visualization Size - Defines a minimal bounding box size for objects of size 0.
LOD Selection - Automatically selects all the other children of a distance LOD (Level of Detail) node, if the geometry is a child of a distance LOD node and you are selecting a geometry node in the Render Window.
Auto Scroll to Selected Node - Initiates an automatic scroll in the Scene Graph view to the selected node, when selecting a geometry node in the Render Window.
Select 100% Transparent Objects - Enables the selection of objects that have 100% transparent material from the Render Window. This feature only works in OpenGL.
Enable Wireframe - Draws a wireframe of all selected objects.
Always in Front (OpenGL Only) - Draws the wireframe on top of all objects, even if other objects cover the selected object.
Wireframe Color - Sets the wireframe color.
Show Preselection Highlight - Displays the bounding box of an object in the preselection color before selection.
Preselection Color - Sets the wireframe color.