I'm pretty new to this whole thing. I had cura 4.13 and it installed and worked fine. 5.1.1 works, but I have to run it from the file manager. Is there a way to install the 5.1.1 or 5.2.1 and have it replace the older versions?? I am on Ubuntu and I'm still pretty new to that OS, too. I'm using a Lotmaxx Shark V2 Printer. Thanks in advance.