If I want to test other settings then I will just copy the Excel sheet to another tab and alter the chart data selection and then have a sheet for those settings all ready to use in the future
As the Optimiser displays a max of 100 rows of data, would it not be better to have the VRT Template set from 1 to 101 and then 103 to 204??
There should then be no need to reset the Chart data range etc??
