[DiapDealer]

Find:

<span class="calibre5">(?<mygroup>([^<>]+))</span>

Replace:

\g<mygroup>

Not really worth going to the trouble of creating a named group in this case.

Anything (OK not anything--but for the purpose of this exercise) in parentheses is a capture group.

So in my expression:

<span class="calibre5">([^<>]+)</span>

Everything matched within the parentheses (a capture group) can be substituted in the Find expression using \1. If you had more than one capture group, they would be \2 \3 ... etc.

Your way (named groups) will work, but there's no need to go to all that trouble, IMO.

I learned nearly everything I know about regex from http://www.regular-expressions.info/