Defend a free kick as a unit. Set the wall to protect the near post, position the keeper to cover the open side, and save the shot that beats the wall.
Set a wall (players or mannequins) to protect the near post, with the keeper positioned to cover the open side of the goal. Take direct free kicks from the edge of the box, over and around the wall. The keeper commands the wall's position, covers the open side, and saves. Vary the angle and distance, and add a charge-down runner as a progression.
Walls do not exist to block shots. A wall exists to make the goal smaller, so that the keeper stops having to defend fourteen feet of goal and only has to defend the half of it he can see. Once that is understood, most of the arguments about wall size and positioning answer themselves.
It follows that the keeper sets the wall, not the captain and not the nearest defender. He is the only person on the pitch who can see whether the wall is covering the part of the goal he is not standing in front of, and he should be moving it by voice and by hand until it does. A wall arranged by a defender guessing is usually a yard out, and a yard is the difference between covering the near post and leaving a gap over the shoulder.
The most common and most damaging error is the keeper hiding behind his own wall. Standing in the middle of the goal, or worse behind the wall, means he can see neither the strike nor the flight until it emerges. His position should be on the open side, the half the wall is not protecting, with a clear line to the ball.
Wall discipline is the last piece. Players who jump and turn away are conceding the ball under the wall, which is a genuine and increasingly popular free-kick option. Standing firm, arms down, eyes on the ball, is harder than it sounds and worth drilling specifically.
Save it to your private drills, then change the animation, adjust positions, swap equipment, or drop it into a session block. Or start from a blank pitch and build your own.