This seems like it should be an easy thing to do but so far I don't see an easy solution. Starting with a selected set of geometries, I want to copy them to a new layout that is open in another window. What are the steps?
Do you looking for manual way or automated way?
Since is user interactive (with selected object, and another window open), i assume you're referring to manual way. Just hit "c" bindkey for copy, click on the origin point to copy, then just drag to the new window and click to paste it. That's it.