Hello, I am brand new to this software and any type of CAD so please be patient. I have imported a mesh from Zbrush, I then drew over the object to get the basic 2d shape I want to make 3d. The issue I'm having is that when I've extruded the sides I cannot get the front and back faces to fill in. Can anyone help me with what the next stage would be or if I've done something stupid and need to try a different way of doing it? Thanks.