Is there a way to transition out as the narrator speaks? 
not sure if this is right but try this:
&transition fade out black in 4
NARRATOR
(insert text)
INT. NEW SCENE - DAY
It’s said that that’s not a valid directing command 
hm then i’m not sure
Ok, thx anyways!
You CAN do:
&CHARACTER is talk_neutral
@transition fade out black
I do think that there is a specific way to do that but try:
NARRATOR
Your words here.
&transition fade out black
Symbol & doesn’t work with transitions, unfortunately
Oh okay nevermind thank you
If you want to fade out to black while the Narrator speaks, you could use an all black overlay and have the opacity go from 0 to 1 while the narrator is talking to make it appear as if you’re fading out to black.
@overlay BLACK create
@overlay BLACK scales to 1 1 in 0
@overlay BLACK shifts to 100 100 in zone # in 0
@overlay BLACK opacity 0 in 0&overlay BLACK opacity 1 in 2
NARRATOR
Dialogue.