Checking the code behind Nautilus context menu

General Help
#1

In Nautilus, there is entry that can send files directly via Zorin Connect

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How can I see the code that made this menu entry. My purpose behind this is to make similar context entry in Thunar.

Extra points if I can add it under a sub-menu like this one. (Send to mobile device -> SM)

#2

I know how to do this in Thunar for KDEConnect, but not sure about ZorinConnect...

#3

Whatever we could do with KDE connect, we can do with Zorin Connect by appending code to /usr/share/gnome-shell/extensions/zorin-connect@zorinos.com/service/daemon.js instead of kde-connect-cli