That’s a much preferable, less destructive way to add them as I am working with a client’s web designer who is giving me popups as html files for iframes and I didn’t want to mess with their html too much each time they made changes
It’s just a niggle of the way the client wanted some assets kept in certain sub folders referenced by html or css by their paths relative to the html file. I didn’t want to move things around in case it broke that or caused me to need to keep rewriting the paths if they sent me new versions of the html as they keep changing stuff