Navigate to Scheduling >> Patient Scheduling or Scheduling >> Scheduling by Clinician.
Right click on cell having no block or schedule. Select "Add Block".
In type select “Block” for normal block or “Treatment” to create block with customizable color.
Enter description, select color and click save.
After saving treatment block will be displayed as shown in below screen shot. If an appointment is created it will be displayed as shown in below screen shot.
For editing block right click and select “Edit Block”.
Edit opens the block, make required changes and click save.
Saved block after editing.