I have a XamGrid v13.1:

        <ig:XamGrid AutoGenerateColumns="false" ItemsSource="{Binding Configs}" Name="TheGrid" >
            
            <ig:XamGrid.AddNewRowSettings>
                <ig:AddNewRowSettings AllowAddNewRow="Bottom" />
            </ig:XamGrid.AddNewRowSettings>   
            
            <ig:XamGrid.Columns>
                <ig:TextColumn Key="Asset" />
                <ig:TextColumn Key="Maturity"/>
            </ig:XamGrid.Columns>
            
        </ig:XamGrid>

At run time, the AddNewRow is visible, as expected.

Then, in code behind, I group by the Asset column:

        private void GroupByAsset()
        {
            Column assetColumn =
                TheGrid.Columns.DataColumns.FirstOrDefault(col => col.Key == "Asset");

            TheGrid.GroupBySettings.GroupByColumns.Add(assetColumn);

            assetColumn.IsGroupBy = true;
        }

Now at run time, the rows are grouped by Asset as expected, but the AddNewRow is no longer visible.

Is there a way to have the GroupBySettings and AllowAddNewRow functions simultaneously?