the properties for the launcher are not currently exposed via the UI, but thanks for the suggestion as it would be useful.
For now, you can directly edit the .desktop file for your application and change it's settings there - it will be reflected next time you restart the launcher.
The .desktop file should live in /usr/share/applications and you'd need to modify the "Exec=xxxx" line.
the properties for the launcher are not currently exposed via the UI, but thanks for the suggestion as it would be useful. applications and you'd need to modify the "Exec=xxxx" line.
For now, you can directly edit the .desktop file for your application and change it's settings there - it will be reflected next time you restart the launcher.
The .desktop file should live in /usr/share/