Cannot open each file in a new window

I want to open docs in different windows. I was told to go to the Settings section in the left side menu, to scroll down to the Open file, click the arrow to open the drop-down menu, and select to open In its own tab or In its own window. Click the Apply button at the bottom of the page.
I am on a Mac and do not get this option. Is this a bug or just not available for MAC OnlyOffice free versions.

Hello @Andrea

Unfortunately, due to technic issue separate windows of Desktop Editors on MacOS are not available. We are aware of this issue and working on it.