Security objects - View only

Hi
I am trying to grant a group view only access to Fees and Packages (in Ticketing setup). I have both objects (Tkt Setup Fees (Menu Item ID 118) and Tkt Setup Packages (Menu Item ID 116)) set the same way:

but in Tessitura the Add and Delete buttons are active.

Is there another security object that controls adding, editing and deleting?

Thanks
Jess Levy
San Francisco Opera
415-551-6319