@Jabiertxof - could the warning message be displayed as tooltip somewhere in the expanded 'Viewbox' section, or maybe even better for the (insensitive) 'Scale y:' widget (the tooltip would explain why the option is inactive)?
@Jabiertxof - could the warning message be displayed as tooltip somewhere in the expanded 'Viewbox' section, or maybe even better for the (insensitive) 'Scale y:' widget (the tooltip would explain why the option is inactive)?