Add options

Hi everyone,

I want to know if that is possible to add some options inside .desktop files to run the AppImage with options without do it through terminal.

For example, I wish to launch desmume AppImage with such options :
`--jit-enable --lang 2`

I added this on .desktop file but it doesn't work
`Exec=desmume --jit-enable --lang 2`

So, maybe I don't know how to do, no idea, thanks for any help