Why are there so many installations (IB53) after SOLMAN_SETUP?

Hi,

after a new installation of SolMan SPS20 and running SOLMAN_SETUP there are about 109 installations (iBase) in IB53.

All do have the same description "SAP Solution Manager Installationen".

Does anyone now why this happens?

Do I need these installations later?

How can I delete the not necessary installations? Is there a special report for that?

Thanks in advance.

Best regards,

Alex