Here are some tricks in using the Oudie 3.
Using Oudie 3 with your fingers and gloves
Usually in office conditions, you will be using your Oudie 3 with the included stylus. However in flight this is a pain. Stylus is small, Oudie 3 is shaking, so taping the screen is pretty inaccurate. The stylus could get lost really quickly. Oudie 3 is therefore designed to be used with fingers (gloves) rather than the stylus.
This is similar to mouse left-click in desktop Windows. Press your finger or nail anywhere on the screen to create a "Tap". This way you can navigate through the menus or tap on the map to get the Goto and Airspace menu for example.
Tap and Hold
Tap and hold is something similar to the mouse right-click in desktop Windows. There are few uses for a pop-up menu in Oudie 3, so Tap and Hold is normally used to perform special tasks on the map. An example is moving the Nav-boxes or accessing the Flight parameters by tapping and holding the Glideslope indicator. Similar use is assigned to tapping and holding the Wind and North indicators.