I have been following an on line tutorial to enable app indicators on the system tray. The tutorial is relevant to Juno but I was hopeful that it may cover Hera 5.1 as well. Initially everything was going positively up until the final stages of the procedure. I am attaching an edited version of the tutorial which shows all the procedures to be followed to achieve an outcome and indicating where the process broke down. Would really appreciate if anyone can offer any advice that would assist me in completing the process. Many thanks Bob Deb.