Basic GroupingUsage#import MaterialTable from "@material-table/core"; <MaterialTable // ... other props options={{ grouping: true, }}/>;CopyLive Demo#noteSee here for more on the GLOBAL_VARS we use in our demosLive Editorfunction BasicDetailsPanelDemo() { return ( <MaterialTable data={DEMO_DATA} columns={DEMO_COLS} options={{ // Enabling grouping grouping: true, // Show the child count in brackets showGroupingCount: true, }} /> ); }function BasicDetailsPanelDemo() { return ( <MaterialTable data={DEMO_DATA} columns={DEMO_COLS} options={{ // Enabling grouping grouping: true, // Show the child count in brackets showGroupingCount: true, }} /> );}Result