Is there a possibility to add a "Select all" option if I call the `PickMultipleFilesAsync` method of a `FilePicker` object.

```
// Create the songs picker
var songsPicker = new FileOpenPicker();
songsPicker.SuggestedStartLocation = PickerLocationId.MusicLibrary;
songsPicker.ViewMode = PickerViewMode.List;
songsPicker.FileTypeFilter.Add(".mp3");
songsPicker.FileTypeFilter.Add(".wav");
songsPicker.FileTypeFilter.Add(".wma");

var inputFiles = await songsPicker.PickMultipleFilesAsync(); // Let the user pick the songs

```

If the user wants to pick more than one song he has to pick them one at the time. And picking 437 Songs one after another isn't a very good user experience.

It looks like this:

[![enter image description here](https://i.stack.imgur.com/pqvyI.png)](https://i.stack.imgur.com/pqvyI.png)