[ubuntu] Help with Nautilus-Actions Configuration Tool

Hello everyone!

I am a total newbie when it comes to Ubuntu/linux in general, and I have a quick question!

I am using a program called Qnapi, to automatically download subtitles for my movies, and it works very good.. When installed in Windows, it allows to right click on the movie file, and then there will be an option to "Download Subtitles", and this app opens, and searches for the subtitle in question. Unfortunately this option does not appear in Ubuntu after installing the application. I have to manually open the application, then browse for that movie file (since I am totally new to the file architecture in Ubuntu, this is quite a cumbersome task for me).

I've done some "research" and found out that "Nautilus-Actions Configuration tool" allows me to program a specific command, and that it will appear when I right click a file.
Now, since I have literally no clue as to which commands/actions are needed to create such a shortcut, I am kindly asking if anyone would be able to help me?

I have qnapi installed, and I want to be able to right-click the movie file, then have an option such as "Find subtitle", and for this command to tell qnapi that qnapi should search for a subtitle for this file.
Is this possible?

Cheers

Kent