Panasonic CF-W2 Series Reference Manual page 21

Using the Fn Key
[Show status on screen]:
Displays the Fn key status on the notification area.
C. Disable popup
Add the check mark if you want to turn the popup window display function OFF.
"Full Screen" of [Command Prompt] or MPEG files may change to a window
display if Fn+Fx
display function OFF.
3
Click [OK].
Fx
*1
" " indicates any function key from the
*1
keys are pressed. To prevent this, turn the popup window
F1
key to the
21
F10
key.