Most editing tools of the 2000s were "one-way streets"—you edited the option file and stopped. PRO-EVO Editing Studio 2009 V1.4 plus FM created a workflow.
The editor presented a grid view of every player in the game. You could sort by "Aggression," "Consistency," or "Weak Foot Accuracy." For hardcore realism fans, the "FIFA/CIES Observatory" conversion tool allowed you to input real-world performance data to auto-generate PES stats. PRO-EVO Editing Studio 2009 V1.4 plus FM
By the time version 1.4 rolled around, the original PES 2009 editor had evolved from a simple stat tweaker into a database management system. Key features included: Most editing tools of the 2000s were "one-way
