fullscreen to false for a compact calendar that fits inside a card or a sidebar.showWeek to add a week-number column, on the full-size or the compact calendar.cellRender to add it below the date in each cell, like a list of events.headerRender to build your own toolbar, here year and month selects and a switch between month and year grids.disabledDate a function that returns true for days that cannot be picked, like weekends.