litchi pano row

Hola! If I select 2 rows for pano, and set the first row at 0 degree Gimbal angle. What angle will the 2nd row be? I do not see how to set that up. thx -

^^^ Does it make a difference when I drop the shots from 6 to 8? They both seem to produce little planets in Microsoft Ice. Can someone also explain the difference with the number of photos taken per row?