Samsung UN55ES8000G E-Manual page 294

Using the colored and function buttons
with the QWERTY Keypad
●
a
Delete All
Deletes all inputted characters.
●
b
Numeric
Toggles the keypad mode between
Numeric
mode.
N
When the keypad is set to
QWERTY
/ QWERTY
keypad mode and
mode, you can input
QWERTY