Cook County Circuit Clerk Dorothy A. Brown said her office’s newfound role as e-filing technical support is stretching her staff thin — enough that she’s exploring ways to charge court users for help filing electronically.In her budget presentation before the Cook County Board of Commissioners’ Finance Committee, Brown said her office is saddled with a large number of people requiring assistance using the Supreme Court-mandated eFileIL platform, implemented earlier this year.Brown is seeking $120 …