Sets options for placing a support in the model.
Properties
Opens the Support Properties Dialog, which is used to modify support properties.
Custom Form Definition
Opens the user defined form for an object that has a form defined. It is enabled only if a form definition is defined for the support being placed. If the support does not have the form defined, this command is not available. See User-defined Forms.
Feature
Select one or more features for which you want to place a support. You must select
at least one feature. Click Reject 
to clear all the selected features and start selecting the features again. Click
Accept 
when you are finished selecting the features.
The first feature that you select is the primary feature. The system uses the cross section from the primary feature to define the support plane. If you clear the primary feature, the second feature that you select becomes the new primary feature.
Position
Specify the location of the support on the primary feature. This option is available
only when using the Place Support by Point 
command.
Reference Position
Identifies where the supporting reference point is positioned. This reference point is used as the structure reference point, or the location of the structural connection. While selecting the reference point in this step, a single line (rubber band) becomes visible in the graphic view connecting the support position and the reference point.
Reference Orientation
Orients the structure reference point. It can be set up by either rotating the CS about its default Z-axis, or by rotating the CS about its Y-axis. These rotations are used to simulate skewed and/or sloping structure, respectively. You can specify the angles in the Angle control and lock it.
Finish
Places the support using the information that you provided.
Length
Locks the length of the support.
Angle
Defines the angle of the Reference Point Rotation.
Reject
Clears all the selected objects and restarts the selection process.
Accept
Indicates that the object selection is complete.
System
Select the parent system for the support that you are placing. You can create systems in the Systems and Specifications task.
For pipe supports, the default system is the parent system of the pipe you selected
first. For other disciplines, the default system is the last used system.
Rule
Displays the support types based on the rules defined in the reference data. When you select this option, the software uses an Assembly Selection Rule to filter the available supports in the Type box based on inputs such as the pipe outside diameter, distance between the supported object and the supporting object, and whether the route is above or below the supporting object. Clear the Rule option to select any available support type from the catalog.
You or your project administrator have control over how the rules are defined. See Hangers and Supports Reference Data Help.
If you placed a support using the Rule option, and later the inputs to the Assembly Selection Rule (ASR) change, the software
changes the support type to a new type if the selected support no longer satisfies
the ASR.
Type
Sets the kind of support that you want to place. If you select the Rule option, the software lists support types based on the rules defined in the reference data. If you clear the Rule option, the software lists the last ten support types that you placed. Select More to select a different support type.
When you place a designed support, the Type box is not available.
Change Support Configuration
Cycles through the available attachment types based on the feature and the support type. This option is not available for types that do not support multiple attachment types.