To Create a New Automatic UDF Definition on a Coordinate System
1. Click > 
Definition operations 
New AutoUDF definition.One of the following dialog boxes opens:
Definition operations New AutoUDF definition.One of the following dialog boxes opens:◦ Select From Library opens when you are using New AutoUDF definition for the first time in your current session. Select an Automatic UDF definition. The New AutoUDF Definition dialog box opens.
New AutoUDF definition for the first time in your current session. Select an Automatic UDF definition. The New AutoUDF Definition dialog box opens.◦ New AutoUDF Definition opens when you already created a new AutoUDF definition in your current session.
2. If required, click 
to select another Automatic UDF definition from the library.
to select another Automatic UDF definition from the library.3. Click Next. The AutoUDF Definition dialog box opens.
4. Activate the Coordinate system reference collector. Then, in the model, select the coordinate system where you want to create the Automatic UDF definition.
5. In the Variable dimensions box, type values, or select model dimensions and parameters. The Variable dimensions box displays all named dimensions, and real and integer parameters in the model the coordinate system belongs to. If you select a dimension or parameter instead of typing a value, the value of that dimension or parameter is used as the value.
6. Optionally, allow larger or smaller tolerance between the coordinate system and the attach part by entering a value in the Attach part tolerance box.
7. To create all required UDFs in touching parts after completing this definition, select Create UDFs in all attach models.
8. Click one of the following buttons:
◦ Preview to see a preview of the UDF created by this definition.
◦ OK to permanently apply this Automatic UDF definition on the coordinate system.
◦ Cancel to cancel this definition and close the dialog box.