contextmenu - Add submenu in context menu Osx -

i try integrate software in mac want add actions in finder contextmenu.

for moment have entry "mysoftware" launch , shell script via automator script using thread:

stackoverflow adding-a-script-to-macos

now want same want 3 actions in 3 sub-menus like:

mysoftware -> update file / mysoftware -> delete file / mysoftware -> openwebsite

but cannot make using cocotea or c++ language, shell script automator.

thanks lot,