Thanks for that. The way it is set up is that when you click on the toolbar button, the left pane appears. I have figured out in JS where that takes place and have changed some things around already. There is no specific TitlePane HTML code, just the leftpanel code I provided. Utilizing "inspect element" in Chrome, I have figured out the hierarchy of the TP. It goes boardercontainer, stackcontainer,contentpane,tp1,2,3.