You should be able to get the effect you're after by setting the Margin
on your ContentPresenter
element itself e.g:
<ContentPresenter
x:Name="SettingsContentPanel"
Grid.Row="0"
Grid.Column="2"
Grid.ColumnSpan="2"
Content="{Binding ElementName=SettingsGroupSelector, Path=SelectedItem.Tag}"
Margin="5,5,5,5" />
Also, if the Margin
is the same on all sides, you could use the shorthand Margin="5"
.
Hope that helps =D