<p>There is a groupwall of which I want to download and store all messages in a db.
In the documentation I cannot find a good way to do it. Did I miss something? What's the good way to do this?</p>

Do you even need to use an AccessKey at all? Assuming that you didn't need/want the custom styling of the MenuItem header text, you could get the same affect by doing the following:
```
```
<MenuItem HeaderText="_02" />
```
```
Would just putting an underscore before the 0 work? Although I seem to recall that one difference between TextBlock and Label is that TextBlock doesn't support access keys, but Label does. If that's the case, maybe use a Label instead of a TextBlock in your menu item?