In this mode you can change the composition of the database tree.  There are 3 database trees.  One each for 1D, 2D and 3D objects.  The 1D objects are spectroscopy data, the 2D are images and the 3D are polygon geometries.

 

This mode enable you to manipulate the composition of the 3D database tree by selecting the 3D classes that will be used in the generation of the tree.

 

The interface for this mode is similar to the "DB Class Management 2D" mode of "The 2D Modes" section of the manual.  The only difference is in the choice of available classes.