Create a command TestCommandCtx1 in the viewmodel;
Create a framework element, then add a trigger to it:
<TextBlock x:Name="Test" Text="TestText" Background="Blue" Width="120" Height="60">
<i:Interaction.Triggers>
<noesis:GamepadTrigger FiredOn="ButtonDown" Button="Context1" ActiveOnFocus="False">
<i:InvokeCommandAction Command="{Binding TestCommandCtx1}"/>
</noesis:GamepadTrigger>
</i:Interaction.Triggers>
Observe that TestCommandCtx1 is not getting called on Context1 button click.