We have an Ext.panel.Panel inside of our Viewport (fit layout), which is a border layout (created initially with configs). The border layout within the main center panel contains mostly other types of panels (grid, tree, etc) that are dynamically added to the main center panel (configs) depending on the context. On the west is a tree used for navigation, and to the north are various controls and toolbars.
Please let me know what I am missing. Thanks for your insight.