Problem with Language Selection in Saloon Template

Hello,
trying to follow all steps in that blog, everything goes fine until step 9.

First of all please make me clear this:

''My website will be in English and Greek language.
Should I use the existing Main Menu for English language and create one more for Greek language,
or create two more Menus for each language?"

According the instructions I assume that has to be done following the second option above.

Now as soon I dublicate the template and assighn the menus,
the Main menu dissapears from front end.
The only way to brink it back is to assighn all the pages and Menus from both languages in the Main Menu wich is set on All Languages.
Like this looks that I can navigade normaly, changing languages but I can not demonstrate the video in step 10.
What I mean is that the language switcher does not work in the Front editor.

Can you please check what I am doing wrong?

Best regards

Hi again,
finally I found out the way but I am not sure if I have setup correctly the templates as says in steps 9-10.
If you can check there please.

Kind Regards