Renaming Files, Way To Include Extension?

This is probably small to most people and maybe many prefer it now, but when manually renaming a file the extension is not highlighted forcing me to have to perform a second manual operation to highlight the whole filename. It is the 'rename' function but I use it to copy and paste the entire file name. Like I said it is probably a minor thing to most, but I do this many, many times a day so if there was anyway to have this function behave like it did in all previous Windows versions I would like to know how to do that.