Which of the following statements are correct about the page designer?

The page designer consists of five areas: page information and operation area, component area, page preview area, page components tree area, and component property area.

All components in the component tree are displayed in the preview area on the page.

Some components in the component tree are not displayed in the preview area, for example, Js.

You can drag a component in the preview area on the page to change the position of the component. You can also drag the component in the component tree to change the position of the component.