WorksheetManipulatorAlignWithBoundingBox

This command aligns the manipulator with the lower, lower, lower corner of the bounding box any selected group, level-of-detail, or mesh node.

Select a group, level-of-detail, or mesh node.
Invoke this command from the Worksheet » Manipulator option on the main menu.

This command is unregistered. You can find this command in WORKSHEET_SCRIPTS.SSL.