Panasonic KX-T336 System Reference Manual page 713

<Field 4>
This function field is available for concluding Extension Management screen and
moving to other screens as selected by the function keys.
Field 4
F1
(LOOP & TRG)
F3
(Pickup. G. Manage)
F4
(CO Manage)
F5
(Attendant Manage)
F7
(Help)
F8
(Function Select)
LOOP & TRG
Pickup Group
Management screen
CO Management
Management screen
Help screen
6-C-25
screen
screen
Attendant
Field 1