Discussion board where members can get started with Qlik Sense.
Does the list box show as treeview in the QlikSense?
I assume you are referring to the native object called Filter Pane. This object does not support treeview. Please see online help for more details on supported feature on objects.
Are there any plans to include a treeview listbox or an equivalent object in QlikSense?
link provided is not working
As of now there is no such object available but you always have the leverage to develop a visualization. So if its a must have requirement, I would suggest you to develop one.
Filter pane ‒ Qlik Sense