I am just interested now how to apply the macro to another sheet, with much more data..... how to adapt the macro ?
Some questions:
1. how to adapt the macro to a specific data sheet ?
2. where is the instructions creating the "button" ?
3. where can I change the colour of the vertical line of the graph (currently grey)?

I have some experience of programming but in this case I cannot see any instructions easy to understand!

Thanks for your feedback