in fcp 5 i have tried several times to apply the same trans to several clips i have also tried to remove trans from several clips. the one thing i have learned is that unless it is a custom trans you built using keyframes you cant.
i have only been able to copy> paste attributes to several clips.
but i am not the brightest star so there maybe something out there i havent discovered. i ask the same question here about 2yrs ago and got not solution.
thats my 2 cents but if you find out how post the solution please.
"""
What you do with what you have, is more important than what you could do, with what you don't have."
> > > Knowledge + Action = Wisdom - J. Corbett 1992 """"