@Ronald Hoppe Thank you for this idea, but as far as I know, I could not use Java to put something into the Windows clipboard or get it's content.
For the documentation: Do you mean LS2J documentation? When I start the Domino Designer and open the Help, I see quite some documentation under:
HCL Domino Designer Basic User Guide and Reference > HCL Domino Designer Basic User Guide and Reference > LotusScript Language > Beyond Core LotusScript > LS2J: Connecting with Java