There are 4 further groupings of blocks besides the ego, superego, superid, and id groupings. These are the corresponding blocks of psyche; you will find supplimenting functions in these blocks.

1. active will - the first and fifth functions
2. authority - the second and sixth functions
3. neurosis - the third and seventh functions
4. phobia - the fourth and eighth functions
These would be the axes Se/Ni, Te/Fi, Fe/Ti, Ne/Si. Does anyone know where the parts I bolded originally came from or where I can find more information on it?