Lets you align a camera to a selected face normal.
From this flyout, you can also choose Align, Align Normals, Place Highlight, or Align to View.
Align to Camera works similarly to the Place Highlight function, except that it operates on face normals instead of angle of incident, and occurs on mouse up instead of dynamically acting during the mouse drag. Its purpose is to let you align a camera viewport to a specified face normal.
The chosen face normal appears as a blue arrow beneath the cursor.
The camera is moved so that the selected normal is centered in the camera viewport and faces the camera.