Select one or more files from the Mp3 list and select Copy ID3v1 tags To ID3v2 tags.
You can select as many files from the Mp3 list as you want.
Depending of the options your ID3v2 tags will be replaced with ID3v1 tags.
Options
If you choose preview mode you
can see all changes before they are actually made.
To see how to select files from
the Mp3 list go to How to
select files from the list.