How to add list of MenuItem controls using MVVM binding?

[SetTrend]

I'm trying to render an MRU files menu item list using MVVM and data binding. However, I'm not able to …

1. assign an access key
2. assign a mnemonic
3. assign a command

This is the code I'm using:

<MenuItem x:Name="FileMenu_MruList" Visibility="{Binding Path=FileMruList.Count, Converter={x:Static conv:VisibilityCounterConverter.Instance}}">
  <MenuItem.Resources>
    <cmd:FileMruCommand x:Key="FileMruCmd"/>
    <CollectionViewSource x:Key="MruFiles" Source="{Binding Path=FileMruList}"/>
  </MenuItem.Resources>

  <MenuItem.CommandBindings>
    <CommandBinding Command="{StaticResource ResourceKey=FileMruCmd}" Executed="FileMruItem_Executed"/>
  </MenuItem.CommandBindings>

  <MenuItem.ItemsSource>
    <CompositeCollection>
      <CollectionContainer Collection="{Binding Source={StaticResource ResourceKey=MruFiles}}"/>
      <Separator/>
      <MenuItem Header="_Delete list"/>
    </CompositeCollection>
  </MenuItem.ItemsSource>

  <MenuItem.ItemTemplate>
    <HierarchicalDataTemplate DataType="{x:Type mru:MruItem}">
      <TextBlock Text="{Binding Converter={x:Static conv:MruItemConverter.Instance}}"/>
    </HierarchicalDataTemplate>
  </MenuItem.ItemTemplate>
</MenuItem>

From the following screenshot you can see:

… that

1. The numbers are not underlined. The underscore character is output vanilla.
2. Pressing any of the assigned numbers while the menu items are active won't execute them.

How can I have these menu items act as expected?

[miloush]

Instead of TextBlock use AccessText

[SetTrend]

Excellent! Works like a charm. Thank you!

[SetTrend]

Yet, how would I assign a command to that AccessText item? 🫤