LG D415 - Manual (Page 52)

50
Functions
QuickMemo
The QuickMemo feature allows you to create memos and capture screen shots.
Capture screens, draw on them, and share them with family and friends with
QuickMemo.
OR
1 Enter the QuickMemo screen by
pressing QuickButton Key for
one second on the screen you
want to capture.
OR
Touch and slide the Status Bar
downward and tap
.
2 Select the desired menu option
from Pen type, Color, and Eraser.
Then create a memo.