How to create logical component group in Solman 7.2 (on CAL)

Hi,

Maybe I'm missing something simple...

I've created an instance of Solman 7.2 in the cloud appliance library for exploration purposes.  In particular I'm keen to understand the process modelling

I'm trying to create a logical component group (LCG) in my solution (no problem creating a solution). On the 'Logical component groups' tab, we can only display or edit, but there is a link to 'create / delete logical component groups within solution administration' below. This takes me to 'Solution administration'.  I can create a Solution here, but there's no obvious way to create a LCG.

I have given myself all the *SLD* roles and all  the SAP_SM* roles and the reading suggests that if I can get to the LMDB, that should be enough.

Hope someone can show me my mistake....

Thanks,

Guy