HI Trina (and Ron). Many thanks for your responses. I have got a solution similar to the one Ron suggests - which looks really nice. However, the 'perfect' solution (I think) would require the animation to move upwards in some cases and down in others, depending on prior selections. If I want to go from 'our mission' to 'our culture' the direction is up. But, if I want to go from 'our campus' to 'our mission, the direction is down.
I guess I'm looking for an animation to reach a fixed destination point, regardless of starting position. Suspect that isn't possible?!
Many thanks for posting the original example, though Trina. It looks fantastic and I've unashamedly 'borrowed' the idea!