A question on functionality

[Larry White]

My apologies in advance if this is the wrong forum. If there's a better
place for this kind of question, please let me know.

Will it be possible to open a window (Swing or JavaFX) from the REPL
initialized with data from the REPL? I'm specifically asking about the
ability to initialize it with arbitrary data (as opposed to a string array
passed through main() or the JavaFX launch() method).

Alternately, will there be a way to open a window such that the method
called to open it, returns a reference that can be used to pass data that
can be displayed?

My use case is to manipulate some data, then open a window to display a
plot, as is common in an R or Python REPL.

Thank you very much.

larry