Panasonic KX-T336 System Reference Manual page 690

Classification of the screens
The screen will change depending on the function key pressed.
LOOP key and
Trunk Group
F2
Busy Lamp Field
F3
Speed Dial
F4
Extension Directory
F5
Call Park
F7
Help
F8
Extension manage
Function Select
Pickup G. manage
CO Manage
Attendant Manage
Help
Busy Lamp Field
screen
Extension Directory
screen
Call Park System
screen
Extension
F2
Management screen
Pickup Group
F3
Management screen
CO Management
F4
screen
Attendant
F5
Management screen
F7
6-C-2
Speed Dial
screen
Help screen
Help screen