SAP Security Auth Object Query

Hi All,

I have a small query in security role management , we came across a situation as below,

1.We need to remove edit and delete field for certain auth object for around 30 user's.

2.Here we shouldn't edit existing roles,

3.Is there any best solution to give only display access to this auth object as well as they should be having previous roles.

Did anyone come across this situation.

Really appreciate your suggestion.

Thanks

Pradeep G.