The layout styles are applied hierarchically starting at the Session.

You can let all your Destination screens adopt the Session's values.

In this picture, destination PRO_MAINT is using the session's inherited layout and dimensions:

The screen looks like this:

If we make the panel smaller, it looks like this:

If we override the layout to Flow and size the screen as above, it will look like this:

If we resize it to make it smaller, the size of the contents of the screen are reduced to fit: