I’ve been trying to figure out a way to make custom shortcuts via the TV remote but I’m not sure if I’m stupid or there is no such functionality 
At home we switch between HDMI sound and Bluetooth sound several times a day, and it is really a hassle to press 10-15 times to swap the sound, I’d love a way to switch between two audio outputs, or have bluetooth output automagically enabled when I connect a bluetooth device to my RasPlex which has audio out properties, and then back to last config when the bluetooth device disconnects.