Thank you very much. Simplified my code to BasePickState.
I am recreating Swing with Lemur. Each panel with its own paints must be its own camera and view and root node, otherwise the painting is not independent.
Project: Tinker an xml editor with JME3?
Some views are real 3D (but sometimes with Lemur in them too), some are actually just gui. Since the botth (maybe 3d, maybe 2d) in the SplitPane has to be independent, I do each Panel as its own camera view. GuiViewPort is only withheld to the popup menus and the splitter bars.
I’m thinking about TabbedPane, multiple views, but only one active …