In the Available Skill Sets grid, delete a skill set if needed.
Some skill sets are included automatically and cannot be deleted. They are shaded gray and the 
button is not displayed. However, you can click 
to add additional skills to the predefined list.
The following skill sets are included automatically:
• Numbers
• Letters
• Letters (including Spanish)
• High-Frequency Word List
• Color Word Recognition
• Rote Counting