Group Fields in adding resource dropdown about mocker HOT 7 CLOSED

     <FormControl sx={{ m: 1, minWidth: 120 }}>
        <InputLabel htmlFor="grouped-select">Grouping</InputLabel>
        <Select defaultValue="" id="grouped-select" label="Grouping">
          <MenuItem value="">
            <em>None</em>
          </MenuItem>
          <ListSubheader>Category 1</ListSubheader>
          <MenuItem value={1}>Option 1</MenuItem>
          <MenuItem value={2}>Option 2</MenuItem>
          <ListSubheader>Category 2</ListSubheader>
          <MenuItem value={3}>Option 3</MenuItem>
          <MenuItem value={4}>Option 4</MenuItem>
        </Select>
      </FormControl>