Hey, today im gonna tell you how to get visible on oly, as Spectator/Observer
1. Take a Class with the Skill "Hide"
2. Go to Olympiad Manager and use "Hide"
3. Go to observe a Match
4. Wait till you see "Hide has worn off" in the Chat window
And done, now you will be visible for the Fighting Players, and the other players Observing, but you wont see yourself.
PS: The Players Fighting in Oly will be able to Attack you, but you will take no Damage ;D
Have Fun ;)
Working for me on every server i tested on Gracia Final and Epilogue