Hi, As I tested what plugin would be best for authorization. I found that these two plug-ins : 
"matrix-auth" and "role-strategy" complete each other.

For example, if the "matrix-auth" plug-in would be able to manage roles it would make it much easier to use it and perform authorization in a large jenkins .
I am struggling with managing a large jenkins and setting the right permissions per user instead of per role.

And when I tried the "role-strategy" plug-in I saw that I miss the option to set per folder or any jenkins item the permissions I would like the roles to have there. The "role-strategy" is missing low-level permissions which the "matrix-auth" does give.

My request for improvement is to merge the two plug-ins into one really good which covers all the required things for authorization.