How to type em-dash with a croatian keyboard layout?

I have Catalina and a Mac Air 2017.

No matter what I try, I can't get the em-dash. I tried everything on the forum, nothing worked. All I keep getting is that upside-down question mark. I have a Croatian keyboard layout.


¿ is exactly what you are supposed to get with option shift minus on the Apple Croatian input source.

To see which key does what, use Keyboard Viewer.

em dash is option y