[f64]

I'm not using multiple groups for anyone. I used "@<group>" in the admins_simple.ini
and then listed all accessible admin models under each group category in your models.ini. Here's an example of how I set up my models.ini:

"Models"
{
    "Admin Models"
    {
        "Admin"        "Founder"
        "Team1"
        {
            "abc"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }
            "abcd"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }
            "abcde"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }            
        }
        "Team2"
        {
            "fgh"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }
            "fghi"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }
            "fghij"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }                
        }
        "Admin"        "Senior_Admin"
        "Team1"
        {
            "abc"
            {
                "path"        "xxxxxxxxxxxxxxxx.mdl"
            }
            "abcd"
            {
                "path"        "xxxxxxxxxxxxxxxx.mdl"
            }            
        }
        
        "Team2"
        {
            "fgh"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }
            "fghi"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }
        }
        
        "Admin"        "Member_Admin"
        "Team1"
        {
            "abc"
            {
                "path"        "xxxxxxxxxxxxxxxx.mdl"
            }    
        }
        
        "Team2"
        {    
            "fgh"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }
        }
        
    }
    

    "Public Models"
    {
        "Admin"        ""
        "Team1"
        {
        "efg"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }
        "efgh"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }            
        }
        
        "Team2"
        {
        "wxy"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }
        "wxyz"
            {
                "path"        "xxxxxxxxxxxx.mdl"
            }            
        }
    }
}

This way, upper admin groups can get all the models that the lower groups can get in addition to their unique ones.