You can create two objects, one on top of the other. By default the top object has no fill, so that you can see the object underneath and put a border around an object, or group multiple objects together. However you cannot click the object “underneath”, the top object blocks selection.
There is a global setting in Preferences:
And now you can select through:
Example usage for Network Engineers:
Thanks to Carl for the tipoff (you know who you are!)
