UserID = 1;

    CalendarsStructure = New Structure;
    CalendarsStructure.Insert("type"       , "user");
    CalendarsStructure.Insert("ownerId"    , UserID);
    CalendarsStructure.Insert("name"       , "new calendar");
    CalendarsStructure.Insert("description", "My new calendar");
    CalendarsStructure.Insert("color"      , "#FFFFFF");
    CalendarsStructure.Insert("text_color" , "#000000");

        ExportStructure = New Structure;
        ExportStructure.Insert("ALLOW", "True");
        ExportStructure.Insert("SET"  , "all");

    CalendarsStructure.Insert("export", ExportStructure);

    URL = "https://b24-ar17wx.bitrix24.by/rest/1/h0m...";

    Result = OPI_Bitrix24.CreateCalendar(URL, CalendarsStructure);

    CalendarsStructure.Insert("name"       , "Another calendar");
    CalendarsStructure.Insert("description", "My other new calendar");

    URL   = "b24-ar17wx.bitrix24.by";
    Token = "8536b467006e9f06006b12e400000001000...";

    Result = OPI_Bitrix24.CreateCalendar(URL, CalendarsStructure, Token);