@Ashley I'll try that, but my main problem is the ugly white column, so far I have two solution, for both I need your imput.
1) Change the layout size as an action, I didn't see a way to do this, but maybe there is. If there isn't is it possible to do this with a plugin? What I mean is I have a layout that has a property of 100x100 I change it at runtime to 200x200.
2) If the previous is not possible I could create two or more layouts in order to have different aspect ratios, but! Is the Window Size property a constraint? Or is it only used for the initial canvas size (before resizing)?