How to enter the same time w/ another character

So I’m kinda new and I’m trying to write a story but I don’t know how to make characters enter at the same time, I looked on a video but it just shows how they exist and I tried to do the same thing w/ it but it didn’t work?

@CHAR1 enters from ______ to _______ _______ AND CHAR2 enters from ______ to _______ _______

@OLIVIA enters from left to screen center AND EMILY enters from right to screen right

You put both of the characters into the same sentence. Hope this makes sense