How do I change trade deadline and can I if it has passed

Okay all need some final advice before I hit send and no turning back. I’m set with WR bit could use a RB. He needs a win and has 2 players on Bye he can’t use and is CMC owner. Those two players are Chase Brown and Amari Cooper. I think I could get them for Jordan Mason and either McLaurin, Nico or Higgins What you all experts think to make a Deal Happen?

Do I trade k9 for James Connor? Ppr redraft

12 man .5 ppr My- Tyreek hill and Gus Edwards His-AJ Brown and R Johnson I do have Swift

Pollard and Kraft for Kelce?

Send: Pollard and Swift Receive: Chubba My other rbs are bucky and jacobs

Steelers D @ Browns Or Texans D v Titans

Mike evans or Cade Otton dynasty TE prem 14 man

Desperate need of help! Ppr - my Stevenson and Swift for their Kelce and Ridley My other RBs are - Mixon, Conner, Dobbins, Hunt, Bucky My other WRs - G Wilson, Adams, London, Pickens, Cooper TE - Engram