Use CDMage to extract the file TEST.EVT from the ISO's Event folder. IIRC, EVSP comes with a set of the game's base events already, so you won't need to extract the bowing event. Just start up EVSP, select the "Final Fantasy Tactics - PSX" folder, open Orbonne Prayer, edit the event, and then choose to Compile it into your TEST.EVT. Still using CDMage, import the new TEST.EVT to the Event folder.
You'll have to do a bit of looking up how event commands work, specifically UnitAnim so you know which command to replace and how to make it point at Rad. But it's nothing too awful.
You'll have to do a bit of looking up how event commands work, specifically UnitAnim so you know which command to replace and how to make it point at Rad. But it's nothing too awful.