Make Tile.DisplayIndex property a dependency property so it can be can be set through data binding.

This feature will be available with Q2 2015 expected till the end of June. 

Resolved with Q3 2014 expected till the end of October. 

This issue will be resolved with Q3 2014 expected till the end of the month. 

The fix will be released with Q1 2016 offical version.

Create a feature in the RadTileList control that allows the user to select multiple tiles, but only one (or maybe, any number - it could be a property that is set for this specific kind of selection) per group.

This was first discussed on this forum thread: https://www.telerik.com/forums/multiple-selection-single-selection-per-group and it's the reason behind this feature request.

The current workaround to overcome this "issue" is also available through that link.

The fix will be available with Q2 2015. 

The problem should be resolved with lib version 2015.3.1026.

Should be resolved with lib version 2014.3.1124