public void setBottomComponent(JComponent comp) {
		if (comp == bottomComp) {
			return;
		}
		if (bottomComp != null) {
			remove(bottomComp);
			bottomComp = null;
		}
		if (comp != null) {
			bottomComp = comp;
			add(bottomComp, BorderLayout.SOUTH);
		}
	}
Sets a component below the main panel that was passed to the constructor.
If the component passed to this method is null then the TitledPanel will
not have a component below the main panel.
@param comp the component to display below the main panel. Null indicates none.
Ghidra/Framework/Docking/src/main/java/docking/widgets/TitledPanel.java