I have the below grid - and the group command is not showing at all in the grid - just the template - but the GridCommand is not visible on the page?


 <ext:GridPanel runat="server" Width="958" Height="465" AutoHeight="true" ID="gridClaimDetails"
                                        StoreID="store835ClaimDetails" Border="false" Cls="my-grid">
                                        <ColumnModel>
                                            <Columns>
                                                <ext:SummaryColumn ID="DateColumn44" runat="server" Text="Service Date" DataIndex="serviceDate"
                                                    Width="80" Groupable="false">
                                                    <Renderer Fn="Ext.util.Format.dateRenderer('m/d/Y')" />
                                                    <SummaryRenderer Handler="return 'Totals:'" />
                                                </ext:SummaryColumn>
                                                <ext:SummaryColumn ID="Column15" runat="server" Text="Proc Code" DataIndex="procCode"
                                                    Width="90">
                                                    <SummaryRenderer Handler="return '&nbsp;'" />
                                                </ext:SummaryColumn>
                                                <ext:SummaryColumn ID="Column22" SummaryType="Sum" runat="server" Text="Amount Billed"
                                                    Align="Right" DataIndex="billedAmount" Width="90">
                                                    <Renderer Handler="return Ext.util.Format.usMoney(value).replace('$','');" />
                                                    <SummaryRenderer Handler="return Ext.util.Format.usMoney(value).replace('$','');" />
                                                </ext:SummaryColumn>
                                                <ext:SummaryColumn ID="Column23" SummaryType="Sum" runat="server" Text="Amount Paid"
                                                    Align="Right" DataIndex="paidAmount" Width="90">
                                                    <Renderer Handler="return Ext.util.Format.usMoney(value).replace('$','');" />
                                                    <SummaryRenderer Handler="return Ext.util.Format.usMoney(value).replace('$','');" />
                                                </ext:SummaryColumn>
                                                <ext:SummaryColumn ID="Column24" SummaryType="Sum" runat="server" Text="Amount Provider Paid"
                                                    Align="Right" DataIndex="providerPaidAmount" Width="115">
                                                    <Renderer Handler="return Ext.util.Format.usMoney(value).replace('$','');" />
                                                    <SummaryRenderer Handler="return Ext.util.Format.usMoney(value).replace('$','');" />
                                                </ext:SummaryColumn>
                                                <ext:SummaryColumn ID="SummaryColumn1" runat="server" Align="Center" Text="Prov. Pd Amt. Code"
                                                    DataIndex="providerPaidAmountCode" Width="105">
                                                    <SummaryRenderer Handler="return '&nbsp;'" />
                                                </ext:SummaryColumn>
                                                <ext:SummaryColumn ID="Column26" SummaryType="Sum" runat="server" Text="Paid Units"
                                                    Align="Right" DataIndex="pdUnits" Width="85">
                                                    <Renderer Handler="return Ext.util.Format.usMoney(value).replace('$','');" />
                                                    <SummaryRenderer Handler="return Ext.util.Format.usMoney(value).replace('$','');" />
                                                </ext:SummaryColumn>
                                                <ext:SummaryColumn ID="Column27" SummaryType="Sum" runat="server" Text="Submitted Units"
                                                    Align="Right" DataIndex="subUnits" Width="85">
                                                    <Renderer Handler="return Ext.util.Format.usMoney(value).replace('$','');" />
                                                    <SummaryRenderer Handler="return Ext.util.Format.usMoney(value).replace('$','');" />
                                                </ext:SummaryColumn>
                                                <ext:SummaryColumn ID="Column28" runat="server" Align="Left" Text="Group - Reason Codes : Amounts"
                                                    DataIndex="GroupReasonAmount" Width="170">
                                                    <Renderer Handler="return '<div style=margin-left: 20px;line-height:200%;>' + value + '</div>'" />
                                                    <SummaryRenderer Handler="return '&nbsp;'" />
                                                </ext:SummaryColumn>
                                                <ext:CommandColumn runat="server" Hidden="true">
                                                    <GroupCommands>
                                                        <ext:GridCommand Icon="Accept"  CommandName="markClaim">
                                                            <ToolTip Title="Mark Claim" Text="Click here to Mark Claim" />
                                                        </ext:GridCommand>
                                                    </GroupCommands>
                                                </ext:CommandColumn>
                                            </Columns>
                                        </ColumnModel>
                                        <View>
                                            <ext:GridView runat="server" ID="gridView1" TrackOver="false" LoadMask="true">
                                            </ext:GridView>
                                        </View>
                                        <TopBar>
                                            <ext:Toolbar ID="Toolbar2" runat="server">
                                                <Items>
                                                    <ext:Button runat="server" ID="Button5" Text="Export Claim Details To Excel" Icon="PageExcel">
                                                    </ext:Button>
                                                </Items>
                                            </ext:Toolbar>
                                        </TopBar>
                                        <Features>
                                            <ext:GroupingSummary ID="GroupingView1" runat="server" HideGroupedHeader="false"  EnableNoGroups="false"
                                                EnableGroupingMenu="false" GroupHeaderTpl='Account: {[values.rows[0].data.claimID]}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;Patient: {[values.rows[0].data.patient]}
                        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;HIC: {[values.rows[0].data.HIC]}&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;ICN: {[values.rows[0].data.ICN]}
                        &nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;&nbsp;{[values.rows[0].data.claimMarked]}' />
                                        </Features>
                                    </ext:GridPanel>