The activation of the command is possible from: The activation of the command is possible from:
The menu bar: Segmentation ► Box Segmentation
A new icon 
from a new ‘Gauss
Point’ toolbar’ (see Fig.
46 : New Gauss Point toolbar)
The menu bar: Segmentation ► Sphere Segmentation
A new icon 
from the updated
‘Gauss Point’ toolbar 
Note:
As for picking command, the timestamp popup menu will not provide this functionality since the segmentation is also implemented as a View attribute. Thus, segmentation will be enabled for all presentation displayed in the 3D view.
As for plane segmentation command, the timestamp popup menu will not provide this functionality since the segmentation is also implemented as a View attribute. Thus, segmentation will be enabled for all presentation displayed in the 3D view.
The activation of the command is done by selection of the ‘Box Segmentation’ item from either the menu bar or the toolbar icon. A check mark will be added on the left side of the corresponding menu bar item to remind to user that the option is active. In the case of the toolbar icon, the button remains pressed when command is activated.
Reversibly, the deactivation of the command is done by another selection of the command, which acts as a toggle option. The check mark will then be erased from the menu item, and button from the toolbar will be released.
The activation of the command is done by selection of the ‘Sphere Segmentation’ item from either the menu bar or the toolbar icon. A check mark will be added on the left side of the corresponding menu bar item to remind to user that the option is active. In the case of the toolbar icon, the button remains pressed when command is activated.
Reversibly, the deactivation of the command is done by another selection of the command, which acts as a toggle option. The check mark will then be erased from the menu item, and button from the toolbar will be released.