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Odd behaviour (row skipping) of view-based NSTableview
- (BOOL)tableView:(NSTableView *)tableView isGroupRow:(NSInteger)row
{
    if ((row == 0) || (row == 2)) return YES;
    return NO;
}

- (NSTableRowView *)tableView:(NSTableView *)tableView rowViewForRow:(NSInteger)row
{
    TransparentGroupRowView *rowView = [[TransparentGroupRowView alloc] initWithFrame:NSMakeRect(0, 0, 100, 100)];
    return rowView;
}

- (NSView *)tableView:(NSTableView *)tableView viewForTableColumn:(NSTableColumn *)tableColumn row:(NSInteger)row
{
    if (row == 0) {
        NSTableCellView *cellView = [tableView makeViewWithIdentifier:@"headerCell" owner:self];
        cellView.textField.stringValue = @"Propagation Dimension";
        return cellView;
    } else if (row == 1) {
        NSTableCellView *cellView = [tableView makeViewWithIdentifier:@"propagationDimensionCell" owner:self];
        if (self.geometry.propagationDimension) cellView.textField.stringValue = self.geometry.propagationDimension;
        return cellView;
    } else if (row == 2) {
        NSTableCellView *cellView = [tableView makeViewWithIdentifier:@"headerCell" owner:self];
        cellView.textField.stringValue = @"Transverse Dimensions";
        return cellView;
    }
}