Issue #2594425 by Sam152, gapple, naveenvalecha, dubcanada, Nitesh Pawar, Fonski, bircher, Eric115, ricovandevin, pameeela, mishradileep, juusechec, dawehner, jibran, xjm, ifrik, swentel, kim.pepper, Wim Leers, acbramley, 4aficiona2, yoroy, alexpott, ckaotik, andypost, FeyP: Add the option in system menu block to "Expand all items in this tree"