How to expand elements in `freesimpleguiqt`

[jamesfowkes]

Hi,

I'm using FreeSimpleGUIQt for my project. I would like to expand some elements to fill the width of the window. In "plain" freesimplegui I would use expand_x = True in the arguments, but FreeSimpleGUIQt doesn't support that.

What is the correct way to expand elements, assuming there is one?

Thanks!