I haven't seen this mentioned yet, and while similar to https://clickup.canny.io/feature-requests/p/whiteboards-lock-objects, this would be a way to group a selection of objects together but still be able to move them around together.
So in the future when we are able to use our digital pencils on our tablets we can make a little doodle, but then be able to group all those little lines together so they don't get inadvertently displaced.