How to make template take up more than one column

[Eden-Mor]

If my collection has more than one column how do I make the dummy header template item take up more than one space?
I would ideally not have a header in the collection but I want it to scroll off and I believe I took this example from your sample IIRC

Attached is what I mean
I want the red cell to take up the space in blue

Heres my current code

<datatemplateselectors:ScorecardDataTemplateSelector
                x:Key="ScorecardDataTemplateSelector"
                DataTemplate="{sho:SizedDataTemplate Template={StaticResource ScorecardCard},
                                                     Size=255}"
                FiltersTemplate="{sho:SizedDataTemplate Template={StaticResource FiltersTemplate},
                                                        Size=110}"
                FooterTemplate="{sho:SizedDataTemplate Template={StaticResource FooterTemplate},
                                                       Size=50}"
                HeaderTemplate="{sho:SizedDataTemplate Template={StaticResource HeaderTemplate},
                                                       Size=100}" />



<SHO:CollectionView
                    x:Name="SHOCollection"
                    CollectionLayout="Vertical"
                    CollectionPadding="5,5,5,5"
                    ColumnCount="2"
                    EnableDragAndDrop="False"
                    InfiniteListLoader="{Binding CollectionHandler.ItemPaginator}"
                    ItemSpacing="10"
                    ItemTemplate="{StaticResource ScorecardDataTemplateSelector}"
                    ItemsSource="{Binding ScorecardItemList}"
                    MinimumHeightRequest="500"
                    VerticalOptions="FillAndExpand" />