Selection
Add the Selection node () to create a selection that you can use to define other selections.
You can either link to a selection component directly or as part of an operation between selections such as a union, intersection, or difference. Selection components can be referenced from other selection components, or from any item that has a selection section.
To add a Selection:
On the Home toolbar click the Selection () button, or
Under Definitions Library, right-click the Selections node and choose Selection from the menu.
Creating Named Selections in the COMSOL Multiphysics Reference Manual