Accessing Folder view Desktop Outlook (the program, not website)
On the left side of outlook click on "more apps" button
Scroll down to "Public folders" and expand that list
click on "all public folders" to expand that list.
Adding All Calendars or Specific Calendars for Quick Access in Calendar View
You can add the Test Calendar folder to your favorites or specific Calendars by right clicking and selecting Add to Favorites from the context menu that appears. Doing so causes the calendars to be available when you select calendar view in Outlook.