What is the maximum tilt up and down using the Pan Tilt Bracket when creating Multi Row Panorama?

This depends on your camera and lens combination as there are a couple factors which effect this. The first is the limitation of 5 rows which means that if you have a tighter focal length 5 vertical rows will reduce the amount of possible tilt when compared to a wider lens. The second limitation is a physical limitation. If you have a very small camera it is possible to do 360 degrees of tilt. However if you use a larger camera with a long lens it will hit the panning genie mini and the bottom of the bracket reducing the available tilting range.