React to the volume up key in Tasker while blocking the key's default functionality. To do this, first enable "Key Surpress" mode with the "AutoInput Modes" action, Then setup a new Tasker profile with the "AutoInput Key" condition and select "Volume Up" in the "Keys" option. In the "Key Action", select "Key Down" to only react when you press down on the key, and not when you release it. This allows you to, for example, flip to the next photo in your gallery app with the volume button.