Done

Well that was an interesting (if you are a geek).

The Gorse Fox was busy working on some diagrams and trying to reveal different parts of a timeline based on the way he had placed symbols on different Visio layers. After a little fiddling he managed to create a series of buttons and macros that would switch different layers on and off. The frustrating thing was the way in which Visio numbered its layers... but once that was decoded it was pretty easy.