PowerApps: get calendar from Outlook

Hello.

Is it possible in PowerApps to get a custom calendar from Outlook?
When I use a formula to get a calendar from my Outlook:

ClearCollect(
    Calendar_Coll,   /*Calendar_Coll is my custom collection*/
    Office365Outlook.V4CalendarGetItems(
        LookUp(
            Office365Outlook.CalendarGetTables().value,
            DisplayName = "Calendar" /*"Calendar" is one of my calendars*/
        ).Name
    ).value
)

 I can get only the default calendars when I change a value for the "DisplayName" - Calendar, Birthday...
I create a custom calendar with "Add from directory" Outlook`s functionality for tracking meeting rooms.

Is it possible somehow to get data from that calendar into the PowerApps?

Thanks a lot.