Aft to Side Slip Parallel Park

Ensure your bow thrusters are already on.

Come in at a tight angle along side the dock.

Hook the wheel to the left/ right (away from dock), opposite engine in gear to keep the boat moving.

Bring boat parallel to the dock and a bit past where you want to go.

Once past the dock, hook wheel to the left/ right and click in reverse.

With one engine and a bit of bow thruster, continually modify.

Keep an eye on the final destination.

It is as easy as that!