Hi @simonselmer, the smartapp is a basic control point, you cant search or create playlist o it, but if you have a MeidaServer like PS3 media server you can create a virtual folders to use it like Containers, once you play a container with your advance control point, smartthings save the url and you can use it to play it after some events, your MR must to support containers, but I think the HEOS can, try to use [Updated] Media Renderer Events, play messages, radio stations, tracks, sounds