Dual-Function Keys Without Printed Icons - Lenovo ThinkBook Plus Gen 4 User Manual

Figure 4. Locations of the FnLock key and the Fn key
A Lenovo keyboard usually contains hotkeys in the top row. These hotkeys share keys with the function keys
(F1–F12) and other keys. For these dual-function keys, the icons or characters denoting the primary functions
are printed on top of the icons and characters denoting the secondary functions.
• A: an icon or character denoting the primary function
• B: an icon or character denoting the secondary function
Figure 5. The layout of a dual-function key
Table 3. FnLock and dual-function keys
FnLock FnLock Pressing the hotkey alone
(Esc) status
LED
Disabled Primary function
Off
On Enabled Secondary function

Dual-function keys without printed icons

Some dual-function keys share keys with letter keys and numeric keys. Such keys do not have a dedicated
printed icon. The following table lists the hidden functions for these keys.
Key combination
Fn + M
Fn + N
Fn + Q
20
User Guide
Hidden function
Enable/disable the touchpad
Show device information.
Switch among different operation modes.
Pressing the hotkey while holding down
the Fn key
Secondary function
Primary function