Your personal calendar shows your appointments as a listing. Here, you may create new appointments using the button in the upper right-hand corner. You may inspect the properties of appointments by opening the details page. Here, you may also [ Edit] the appointments and [Decline] and [Confirm] your participation when you are invited.
Group calendars of shared workspaces are treated the same way as your personal calendar at the mobile user interface. The possible actions for appointments are the same.