hp 48gII_user's manual_English_E_HDPMSG48E67_V2.pdf
Page 648
... keys, or XY.Z, to un-assign key XY.Z. Notice that you want to have access to the old-fashioned PLOT command first introduced with the HP 48G series calculator, but currently not directly available from the keyboard, you want to have a quick way to see this menu active by using ,(hold) 7. ASN: Assigns....Z STOKEYS: Stores user-defined key list RCLKEYS: Returns current user-defined key list DELKEYS: Un-assigns one or more keys in this menu to the GRAPH key (C) whose reference number is 13.0, i.e., first row, third column, main function.
... keys, or XY.Z, to un-assign key XY.Z. Notice that you want to have access to the old-fashioned PLOT command first introduced with the HP 48G series calculator, but currently not directly available from the keyboard, you want to have a quick way to see this menu active by using ,(hold) 7. ASN: Assigns....Z STOKEYS: Stores user-defined key list RCLKEYS: Returns current user-defined key list DELKEYS: Un-assigns one or more keys in this menu to the GRAPH key (C) whose reference number is 13.0, i.e., first row, third column, main function.