Save selected out of Blender

I make a lighting setup that is then required over a series of separate shots. It would be lovely if, perhaps under the "save as" option, there would then be the option to "only save selected" to a separate/new Blender file ("save a copy").

Currently, I have to go through many steps to strip out everything but the lights (or whatever I would like to export to a Blender file). And if I use a different format, many aspects of my selection may not export. So a sort of "save selected out of Blender" to a new Blender file would be a huge time saver.