Panasonic KX-T336 System Reference Manual page 854

3.00 Function Mode
Pressing the function key creates a prompt at the
bottom of the screen. The prompt that appears
on the screen is called "Function Mode."
• When pressing the following function keys, the
prompts below are displayed.
Function key
F1 COMMON
F2 INDEX
F3 COPY
F4 READ
F7 AUTO CNF
F8 SET
Prompt
CMD>
INDEX>
COPY>
READ>
AUTOCNF>
SET>
7-I-2
• In function mode, the following keys are not
available: NEXT, PREV, PF2 and PF4.
• To conclude function mode, press the EXIT
(F7) key. Pressing CTRL and C keys
simultaneously also concludes function mode or
other modes such as SHOW LV, CHG LV and
so on.