How to use the notepad?

iOS

To use the notepad, you need to swipe 3 fingers from right to left over the Moving Map and do the reverse to go back to normal. You can also go this way Tools > ScratchPad. 

Android

Go to Configuration > Scratchpad

You can now write information with your fingers.

There are 6 pages which are accessible by scrolling up or down with three fingers. Pages are saved and stored while not erased. To blank the page, tap the screen 3 consecutive times with three fingers. Tap the delete button to erase the notes.