FYI...there is a more informative thread regarding this issue under MMC GPFs Defining Transform Data Task

I am glad to see it is not just me having this problem. It seems to be a very strange bug in the Enterprise Manager UI.

You can use the...

AHA!!! Brilliant. I am glad to find someone esle having the same problem as me. (Misery loves company). Have you managed to work out a solution?

It seems to me that...