doublecs

i am setting my lineup for week 2 challenge. there are 10 spots for me to choose? i thought it was only 8. it is impossible to pick 10. also is there not a roll over on points for the week one team i chose?

i deposited 70 dollars because i wanted 2 teams in the 35, dollar play off challenge , can i create 2 teams? if so how? if not please issue credit