Its simple really, all of you should know how to do this.
Make a topic with your team's name on it and post the players you want to sign. Under the player post the contract you want to offer with any side features which include PO, TO, SB, NTC
YOU CANNOT OFFER A PLAYER MORE OR LESS THEN 3 MIL WHAT HE WANTS!!
6 offers for team max
Ex.
Igor Makarov C- C- C- 24 1100000 0
2 years/ 1.5 mil
NTC
PO
SB of 500k