useRowspanHeaders property
If using multi level table headers, use rowspans for headers that have only one level.
API Docs: https://api.highcharts.com/highcharts/exporting.useRowspanHeaders
Implementation
bool? useRowspanHeaders;
If using multi level table headers, use rowspans for headers that have only one level.
API Docs: https://api.highcharts.com/highcharts/exporting.useRowspanHeaders
bool? useRowspanHeaders;