depends on the system -- every operating system has its own way of entering diacriticals. In Windows, switching to an international keyboard is often the best choice. You can google this in general for your system -- Zotero behaves the same what that e.g. writing here or an e-mail in your browser would.
The only thing that doesn't work are the Office-specific shortcuts.
The only thing that doesn't work are the Office-specific shortcuts.
On Windows, you can get similar functionality by installing the right keyboard layout: https://github.com/adunning/Mac-Keyboard-Layouts-for-Windows