How do I Erase ALL the Notebooks in One User Area?

To erase 1 notebook or all notebooks in 1 specific user area:  Go to SYSTEM FUNCTION MENU, select #6, select #6,  choose SETUP MENU,  enter ZORRO PATTERN,  choose WORK ON SETTING UP A SPECIFIC AREA, choose the area that has the notebooks you want to erase, choose ERASE MEMORY,  select NOTEBOOKS,  now select  1 NOTEBOOK or ALL NOTEBOOKS IN THAT USER AREA.