Not that I know of, but how about just unchecking all at once with the search & uncheck feature and then check the 5 you want?
May be you can make a sub assy of the five parts with the main assy, open that sub assy an d do pack and go or even in the main assy just select sub assy for pack and go. Later you may dissolve that sub assy.
BTW if you have just 5 parts, can you simply copy and paste to desired location from window explorer.
If you only want 5 parts and possibly their drawings is there some specific
reason you want to go the pack and go route?
You can just copy them in either SW Explorer or windows explorer
or if you need to keep references and maybe rename the files you can do a saves as copy
and click on the references button to rename the files.