The tray icon can be used to access the list of current open connections (right button on tray icon) and the command list (left futton on tray icon).
The right menu, simply shows the name of open connections, eventually followed by a number (for more instances of the same connection).
The left menu permits to easily access many krd functions. The first part of the menu presents all configured connections (the groups name are sourrounded by "--"). A click on a connection name starts that connection. The second part contains some functions of the main form and two actions to show or hide the main form.