To Manage Automatic UDFs
1. Click > 
Automatic UDFs. The Automatic UDFs dialog box opens.
Automatic UDFs. The Automatic UDFs dialog box opens.2. Use the options described below to manage the automatic UDFs in your model:
◦ 
—Creates missing automatic UDFs and updates the dimensions of existing automatic UDFs.
—Creates missing automatic UDFs and updates the dimensions of existing automatic UDFs.◦ 
—Removes an automatic UDF from its coordinate system.
—Removes an automatic UDF from its coordinate system.◦ 
—Deletes all unused automatic UDFs. An unused automatic UDF is a UDF that has no corresponding automatic UDF definition coordinate system.
—Deletes all unused automatic UDFs. An unused automatic UDF is a UDF that has no corresponding automatic UDF definition coordinate system.◦ 
—Deletes all automatic UDFs in the current assembly.
—Deletes all automatic UDFs in the current assembly.◦ 
—Suppresses all automatic UDFs in the current assembly.
—Suppresses all automatic UDFs in the current assembly.◦ —Resumes all automatic UDFs in the current assembly.
—Resumes all automatic UDFs in the current assembly. | If you are significantly changing dimensions in the skeleton of your design, it is good practice to suppress all automatic UDFs first, then make the changes. After the changes are made, resume the automatic UDFs. |