Screen inside a screen

[Lezalith]

Hey people,
let's say you had a screen. Any screen.

Code: Select all

screen main:
    tag main_screen
    add "image" xpos 0.5 ypos 0.5
    text "Hi everyone!"
    screen Complicated

My question is about that last line. This doesn't seem to work (Not surprisingly). What I'm trying to do, I have a very complicated conditional branch.
Let's say this whole conditional branch would be about which bar is supposed to be used.

Code: Select all

screen Complicated:
    showif condition == 1:
        bar:
    showif condition == 2:
        bar:
    showif condition == 3:
        bar:

Now, of course, what I could do is basically

Code: Select all

screen main:
    tag main_screen
    add "image" xpos 0.5 ypos 0.5
    text "Hi everyone!"
    showif condition == 1:
        bar:
    showif condition == 2:
        bar:
    showif condition == 3:
        bar:

This would work without any problem. And with simple conditional branch like this, it's still not messy. But what if this conditional branch was long (and we're speaking dozens of lines long)?
What if I have stuff before this conditional branch (like the "add" and "text" statements) and I will have more stuff after the conditional branch?
What I want to do, I want to take that conditional branch OUTSIDE of that screen, so it's more organized, but when it comes to running the game, it is still there (Call it back somehow? "call screen" doesn't work as call is not valid statement for screen)

Thanks in advance!

[sashaaero]

Code: Select all

screen Complicated:
    blah-blah

screen main:
    tag main_screen
    add "image" xpos 0.5 ypos 0.5
    text "Hi everyone!"
    use Complicated

[Lezalith]

Thanks!