Proper breathing for singing?

Question:

Proper breathing for singing?

According to this website: http://www.sing-like-a-pro.com/dangers_b...

These are the four steps to proper breathing:

1.Our diaphragms expand in the front, back and sides to hold incoming air.
2.Our pelvic muscles naturally lift up to support the expanding diaphragm,
3.Our backs extend downwards,
4.And our hips gently roll forward and pull our gluteus (bum) muscles together.

I can only make number 1 & 3 happen when I breath from my diaphram, but not 2 or 4. How do I make number 2 & 4 happen?

Best Answer - Chosen by Asker: I suggest finding singing lessons some where.