Complete the following steps to create a custom data type.

1. On the Types pane of the Types window, expand the Custom Data Types section.
2. Right-click and select Insert Custom Data Type from the context menu. You can also use the Copy and Paste context menu items to copy and rename an existing data type.
3. Select the data type you want from the submenu. When you select the Container type from the submenu, TestStand creates the data type without any fields in which you can insert additional data types.
4. Right-click the new data type and select Properties from the context menu to launch the Type Properties dialog box, in which you can specify the version number of the type and how to pass the data type to LabVIEW, LabWindows/CVI, and .NET code modules.

When you create new data types, use unique names to avoid conflicts with the default names TestStand uses and names other companies and users create. For example, begin new custom data type names with a unique ID, such as a company prefix.