Search and relapse

Bear with me the explanation/request may be non to understandable

In Edit bulk metadata and Search and relapse in the Authors column I have a number of rows as below - and similar for other authors

R. A. Salvatore - [FORGOTTEN REALMS THE LEGEND OF DRIZZT 04]
R. A. Salvatore - [FORGOTTEN REALMS THE LEGEND OF DRIZZT 05]
R. A. Salvatore - [FORGOTTEN REALMS THE LEGEND OF DRIZZT 06]
Etc
Etc

I want to be able to do two things - yes is two separate things but depending upon circumstances
1. Delete all except the authors name - how do I handle the consecutive numbers
2. Keep the Authors name in the Authors column but move the rest to the series column - would be nice to get rid of the brackets

Does anyone know if these can be done

Thanks for any help