Broadcast selected viewport through NDI

I want to broadcast the selected viewport of the default pawn through NDI. I already installed the NDI SDK Plugin and made a blueprint to tell the NDI broadcast actor to begin broadcasting when I press play, and that works just fine.
But I would like to broadcast what I am seeing in my viewport and also move around in the level with wasd while broadcasting, instead of having to move the ndi broadcast actor in simulate mode manually.
I already tried parenting the NDI BroadcastActor to the Default Pawn that has the viewport camera for the level in it, but unfortunately that didnt work.