Append To Polygon & Split Polygon Tool

The two tools I used to today are Append to Polygon & Split Polygon tools. Today, using the append to polygon tool we did to put the face shield (as the cover). Then using the split polygon tool we did for splitting in 3 sections of the inside shield and split vertically the shield to 8 sections. Doing that..selected vertices and click in move tool choosing the 3 points inside the shield...to make it more 3-D dimensional.