<?xml version="1.0"?> <overlay> <tabbox width="100%" id="tab_1"> <tabs> <tab id="test1" label="Test1" /> <tab id="test2" label="Test2" /> <tab id="to_disable" label="Disabled" /> <tab id="test3" label="Test3" /> <tab id="test4" label="Test4" /> </tabs> <tabpanels> <vbox> <label value="This is the content of tab 1"/> <label value="This is the content of tab 1"/> <label value="This is the content of tab 1"/> <label value="This is the content of tab 1"/> <label value="This is the content of tab 1"/> <label value="This is the content of tab 1"/> <label value="This is the content of tab 1"/> </vbox> <label value="This is the content of tab 2"/> <label value="This tab should be hidden"/> <label value="This is the content of tab 3"/> <label value="This is the content of tab 4 - it should be displayed"/> </tabpanels> </tabbox> </overlay>