I'm using ImageJ, which is distributed as a folder with Java files. I would like to add it to the app launcher. Unfortunately instructions from: https://linuxconfig.org/how-to-create-desktop-shortcut-launcher-on-ubuntu-20-04-focal-fossa-linux don't work. Right clicking on ImageJ icon on the desktop doesn't show Allow Launching
option. What is the solution?
NOTE 1
I found that copying the executable file to Desktop folder wasn't the way to go. In app directory:
paul@desktop:~/apps/Fiji.app$ ls
Contents ImageJ2.desktop images java licenses macros README.md scripts
db.xml.gz ImageJ-linux64 jars lib luts plugins retro WELCOME.md
there ImageJ2.desktop
file suitable for this purpose. Right clicking on it shows Allow Launching
option. Unfortunately, selecting it doesn't make it visible to the Gnome app launcher.