Switching between Tab Panels
Supposing we have a TabView section called mytvsection. We can change the selected tab programmatically using the Caption attribute of the tabbed section, here orders, like this:
Lianja.showDocument("page:mypagename.mytvsection?action=select&text=orders")
Note that in the TabView section you can also Hide TabBar at runtime in the TabView Section Attributes. This provides us with a stack of related panels that can be selected programmatically in any of our delegates. This is useful for creating a wizard-style of forms to guide users through a series of data entry steps.
https://www.lianja.com/doc/index.php/Understanding_Lianja_UI_Navigation