Hi Pravin
I'm going to assume a little innocence and assume that you are trying to put all of the related transactions (S_BCE*) for SUIM into the role and not just SUIM.
It is quite worrying that you say there is no Basis person and unlikely to get someone. But that's really between your system and your management. I can only imagine the challenges/mess that will be created over time.
In PFCG, instead of inserting just the transaction in the menu, choose to insert the Area Menu or SAP Standard menu. When the tree structure comes up, navigate to the user information system and add it. It will then add all items relating to it.
The question belongs more in the security space but I can see it being rejected for basic question/failed to search.
Regards
Colleen