[Expressions] How to refer to a comp one level above.

[YuK1_Works]

Can I reference a composition one level up in Expression?
Main > Level 1 > Level 2.
Is there a way to access a "Level 1" composition from a "Level 2" layer in a flowchart like this?
I would like to specify a composition as "one above" instead of specifying it by name.

[Dan Ebberts]

There's no mechanism to reference another comp, other than by name.