Docker is a container for minimap icons.
On first run, Docker will present an round button with an arrow icon, positioned in the center of the screen.
If the button is gray, then it is unlocked and can be moved around. Once it is in a suitable place, click the Right Mouse Button to lock it into place - it will gain some colour at this point.
Left clicking on the colourful icon will open the Docker configuration screen.
ADDON AUTHORS: See the included INFORMATION.txt on how to add support into your addon.
ADDON AUTHORS: 1.10r3 added an extra OPTIONAL parameter to the register function. See INFORMATION.txt for details.