How to let level sequence event trigger an event in level blueprint?

Hi,

I have a level sequence that should trigger an event that I want to handle in the level blueprint. I though Event dispatchers could help but they need a reference to the class and I cannot reference my Director BP, right?

I also tried creating a blueprint interface that has a function that I can reference in the Director BP. For this I followed this tutorial but it seems like this is not working anymore in 5.0 or 5.1:

There is another tutorial but it uses the blast plugin that is not available in UE5:

Is there another way to do this?

Thank you so much for your help