Use a "Kitchen" tool (like SuperR's Kitchen) to mount these images, allowing you to add root access, remove system apps, or tweak performance settings.

Follow these links to read more details:
 daily schedules with calendar
 alarm feature
 create and edit appointments
 search for free resources
 patient details
 list all appointments of one patient
 weekly schedules
 vacation schedules
 configuration for the user
 adaptation to your company
 network capability