You
can exclude the parent surface from the results of Surface-Untrim
features. In the Untrim Surface PropertyManager,
under Options, select Exclude parent surface to exclude the parent surface from the
Surface-Untrim feature
results.
To view the
Surface-Untrim
feature, hide the parent surface. This option simplifies the control of the untrimmed
surfaces. In earlier releases, you had to use multiple tools to achieve the required
results.