Where's the passenger number prompt?

[disco79stu]

So I unchecked "estimate passengers" to be able to choose how many I want to board.
It says there will be a prompt asking me to enter the number, but it never showed. How does this work?

BR

[Fiorentoni]

There's none yet (MSFS doesn't allow keyboard inputs like this), so only way to tell GSX is via the Simbrief integration (read the manual for that).