Yes why have you taken away the good parts is my Question. I want you to help me make it better.
Or I should maybee assume theese features are just hidden from me. as I cant navigate the new "settings"
So how do I make Opera open files with the program of my choice instead of downloading them ?

Sadly I had to go back to 12 again.
Here is the dealbraker for me: Opening files with "program of my choice" instead of just downloading them.
This has been the STRONG side of opera allways as far as I can see.
Other browsers are not bad they just cant do this. Opera could, before.
But not any more.
Also I didnt figure out in Opera 19 how to choose were to open the new window. next to current or at the far end of the TAB bar.
Yea 19 uses a lil more RAM but we also have more RAM now. if you have computer with 2GB ram theese days....
Not an issue for me.

I also went back to 12