Best practice on designing Extension's UI

Hi!

I'm trying to develop an illustrator extension. I prepared the panel and I think I understood how to make the panel interact with the jsx etc.

I have a question though.
My extension is used to generate / draw figures (simplify)
Once some data have been set, the OK is given and the figure is generated.

Is there any way to get a PREVIEW of the figure while changing the parameters?

That is, until confirmation is given, it is possible to continue modifying the figure and its parameters

Thank you