I'm looking especially how to collect the information from the filename certainly via a regular expression to fill in of metadata records
The goal is to tag several files from the information contained in their names
Unfortunately this is not the case I know nothing about vbscript or javacript
There may be a solution using the same regular expressions as inside the rename function.
But instead using the original filename structure for renaming, use it to collect and insert metadata
Problem is only the Rename function currently lets you apply regexps to filenames and use the results (which is why I keep abusing it to do other things but the you need to use vbscript or similar to do them ).
(Not quite true: The command for copying filenames/paths to the clipboard can also apply regexps, but that's probably not useful here. Though, I guess, you could put bits of the filename into the clipboard, then use {clip} in the command, but making it work with multiple fields and multiple files would be quite painful.)