Popover from NSToolbarItem in Mac Catalyst app

Hi,

Inside a Mac Catalyst app, I need to display a popover starting from an NSToolbarItem contained inside the app toolbar (like the Apple Maps Mac app does, see below image).

In order to do that, when I press the button I need to find the toolbar item view and use it as popover anchor.

How can I find the view or frame of an NSToolbarItem on Mac Catalyst?

A property that could help me is the NSToolbarItem "view" property (NSView), but that property has been marked has unavailable in Mac Catalyst.

Any idea?

Thank you