tree of panels 

Hello. I begin learn a vaadin framework and I have a some question. I want to make a tree of Panels,something similar: Tree. For example: the forum form. I write a post and it’s display in form in a panel. Some people can write his post, and can write comment to my post. For it I need make a tree of panels

That sounds like it could be doable with just some server side layouting and a simple custom component. It depends on how you want things to work, but my initial idea was using, for example, a MyCustomComponent extends VerticalLayout that has a main Component and a List of child components.