Ro0kie wrote: If i have 5 O-Linemen how can i set 4 of them as starter ? XOXO Ro0kie

you have to set match orders

go to:
club
then matchs
then click next match orders

You need atleast 7 men on line of scrimmage. If you play only 4 linemen, other 3 are either
A)2 TEs and 1 WR or
B) 1 TE and 2 WRs playing left and right.(Both playing same side won't do, because 2nd WR on one side does lineup on line of scrimmage.)

Center is a must, gotta have it. Other 3 are your choices.

More WRs (and TEs on B) can be played, these are only the minimal numbers.