For our upcoming Roadmap we've decided on a top 5 initiatives and I want to make a plan with only those in it. Because of that I want to create a filter that will contain these Initiatives and all it's children and use it as the source. I haven't found a way to do this yet.
I've tried doing it with parent, but then I'll only get the Epics for a certain Initiative, but I also want to get the User Stories and potential tasks.