Extending WPF triggers

Sometimes it seems that, it would be wonderful to have some more features in WPF triggers system. For example recently the idea of DataEventTrigger arrived in my head, which would be able to run storyboards after simple CLR event of DataContext is invoked. Next example is having a custom TrigerAction,which also would be fine to have. As a example we can mention SetterAction or simple action that can execute some method on object... It's a pity but everything in WPF triggers system made internal! So, I hope that in future releases we will have more chances to extend it.