The part that I bolded “3” is the time, in seconds. I usually keep both the same number but you can adjust the time and play around with it. Time can be any number (it can be 0-although if you’re having a character run, 0 seconds doesn’t make sense, it can be a decimal (0.5-really fast running, 1.7, 2.5, etc.) It can be a whole number (2, 3, 5, etc). Not a negative number as time can’t go backwards.
When you’re having two characters walk into a scene, use & for the first one and @ for the second one. Or you can use AND/and (ex= @CHAR1 walks to spot… AND CHAR2 walks to spot…)
… = You would fill in the rest of course.
Thread to check out: HOW TO: Stage Direction
Helpful resources to check out:
&
And don’t apologize! I love helping 
OK so you want them to enter into zone 1 at the same time? Place them offscreen using spot direction.
Ex.
@CHAR1 spot 1.280 X 0 in zone # at layer #
@CHAR2 spot 1.280 X 0 in zone # at layer #
Place them offscreen and whatever middle value you get in spot directing, sub it in.
Ex.
@CHAR1 spot 1.280 -100 0 in zone 1
@CHAR2 spot 1.280 -90 0 in zone 1
&pan to zone 2 in 3
&CHAR1 walks to spot 1.280 50 0 in zone 2 in 3 AND CHAR1 does it while run_animation
@CHAR2 walks to spot 1.280 100 0 in zone 2 in 3 AND CHAR2 does it while run_animation
You can control the time by the way. In this case, it’s 3 (I bolded it) but you can play around with it.
In addition, here’s a guide on layers: HOW TO: Move Characters / Overlays to the Layers
Sorry to burden you with so much info but if you read over it all, it should help 