I'm not quite sure what you're getting at with your first question.
As far as getting the full path for any selected file or files, ALT+H,CP, will copy the full path to the file(s) to the clipboard for pasting wherever you might need it. If you have multiple files selected, the paths, when pasted, will be one to a line.
Brian - Windows 10, 64-Bit, Version 21H1, Build 19043
It is better to be hated for what you are than to be loved for what you are not.
~ André Gide