Hello, there are some ideas about modalPanel.
It will be good, if in next versions rich:modalPanel will support ability for docking and anchoring (like these realized in windows forms by microsoft for it's Form and UserControl controls).
Essentials of these functionality is, eg, in ability to resizing child controls of modalPanel during user resize rich:modalPanel, and in some over behavior of child components.
If you interesting, please review these implementation in windows forms; Probably, you find there some good ideas for development RichFaces. Thx:)