Fiat 500 cabriolet - roof not closing - exploration and solving the problem.

Last week, my wife told me that she couldn't get the roof to close - at which point I discovered that there is very little practical help on-line. So I am publishing my exploration and discovery ( you will probably be amazed how long it takes me to spot what now seems obvious) Sorry about the poor camera work and rambling explanations. I don't know anything about making You Tube videos . There are a few videos, which together get us to the end of the project - and I'm publishing all of them as there might be useful snippets in each video.