When you are in KDE there a three icons on the task bar, PlutoGalleryViewer, OpenGL and pluto-xine-playback-window.
Select OpenGL and you will return to the LMCE menu bar.
However, there is a 10 minute timer and if it expires you can't get there from here unless you go under webadmin> Devices> Orbiters> select the orbiter that you want and Select the Quick regen button.
However, the timer can be changed in the Oribiters to not expire. In the 'Seconds before screen saver' the value defaults to 600 (60 seconds X minutes = 10 minutes).
Edit this field to 0 select update, Quick regen (may not be necessary)and it won't expire.