Panasonic KX-T336 System Reference Manual page 922

Function
The following functions appear on the function line of this setting screen.
1 COMMON 2 3 4 5 6 HRD CPY 7 8
COMMON (SHOW LV, CHG LV, INS, OUS, REMOVE, EXIT) and HRD CPY keys
are available in this setting screen.
For operation, refer to Section 7–I "Operation of Function Keys."
9-C-7