False 6 Master Elements False True 0 0 dialog False vertical 12 False end _OK True True True True True True False True 0 _Cancel True True True True False True 1 _Help True True True True False True 2 True False True end 0 True False 0 none True False vertical 6 12 6 _Header True True False True True Adds a header placeholder to the master slide for notes. False True 0 _Date/time True True False True True Adds a date/time placeholder to the master slide. False True 1 _Footer True True False True True Adds a footer placeholder to the master slide. False True 2 _Page number True True False True True Adds a slide number placeholder to the master slide. False True 3 _Slide number True False True True True False True 4 True False Placeholders False True 1 ok cancel help Adds or removes header, footer, date, and slide number placeholders to the layout of the master slide.