Displays when you select the Bound by Spaces Command 
on the Space Management Tab.
Volumes
Select the type of volume to place.
Places a volume based on two points that represent opposite vertices of the volume to place.
Places a volume based on three points that define a base plane and a fourth point that defines the elevation or depth.
Places a rectangular volume that encloses a selected set of objects in the model.
Creates one or more volumes based on a minimum of six selected grid planes.
Places a volume based on a pre-defined volume shape you select. You provide dimensional information to define the shape size.
Places a volume along a path. Specify a cross section, and then create a 3D path to extrude the shape along the path.
Creates a volume bound by multiple spaces that you select.
Merges multiple existing volumes into one volume.
General
Catalog Part Number
Specifies the identifier (such as a part number or class) associated with the object to place. Recently used items are available in the list.
Browse Catalog
Displays the catalog associated with your model. Move through the hierarchy to find the objects you need or type the name of the object in the Search box. See Select from Catalog Dialog.
Space Folder
Specifies the space folder for the volume. The list displays recently used space folders that are appropriate to assign for the new volume, and the Select from Workspace and Select from Model options. The most recently used space folder displays at the top of the list.
Select from Workspace
Displays the Select Space Folder Dialog with the Workspace tab open. The workspace is the subset of the active model database you specified when you started your design session. Navigate the hierarchy to select the space folder, and then click OK.
Select from Model
Displays the Select Space Folder Dialog with the Model tab open. The model is all of the objects in the active model database, including those that are not part of your workspace. Navigate the hierarchy to select the space folder, and then click OK.
Select Parent System Hierarchy
Turns on or off the interactive selection. When this option is on, you can select the space folder in a graphic view or any of the explorers.
Name
Specifies the name of the selected volume. If the name is too long to display in the
text box, point to the text box to display the complete name as a tool tip. If the
name is not defined by a rule, 
User Defined displays. If this name is generated by a naming rule, 
Naming Rule displays. If you type a name in this box, Smart 3Dx automatically changes the naming rule to User Defined.
Placement Inputs
Volume Bound By Spaces
Creates a volume bound by multiple spaces that you select. This command is particularly useful in placing volumes defined as areas that cannot overlap. By using existing areas to define a new volume, you can avoid the problem of creating conflicts among defined volumes in the model. Unlike the Space Management > Merge Command, deleting a volume bound by spaces deletes the individual integrity of the sub-volume, but does not delete the sub-volume. If you later remove a volume from the bound space, the software leaves the removed volume in the database.
Completion
Cancel (ESC)
Cancels all changes and exits the command.
Finish (CTRL + ENTER)
Saves all changes and exits the command.
Finish and Modify (CTRL + SHIFT + ENTER)
Saves all changes, and then selects the objects for modification.
Finish and Repeat (SHIFT + ENTER)
Saves all changes, and then restarts the command.