To set the brush mode

In the Paint Panel or Brush Options window do any of the following:

• to apply paint as a brush set Brush Mode to Paint or press and release F1
• to erase paint set Brush Mode to Erase or press and release F2
• to hide paint set Brush Mode to Hide or press and release F3
• to show hidden paint set Brush Mode to Show or press and release F4.
  Note

  Markers always apply paint and do not have a Brush Mode.

  Note

  You can also set Brush Mode to smear paint (Smear), blur paint (Blur), sharpen paint (Sharpen), lighten paint (Dodge) or darken paint (Burn). See Blur paint, Sharpen paint, and Smear paint.