In both the Desktop and Web versions of XpressDox, tabs (see Using Tabs in the interview) are always orientated horizontally, but this can be changed:
The TabOrientation command offers a way of changing that to orientate the tabs vertically in the Web.
The TabOrientation command only works in the web environment, but the InterviewIsWizard command provides a way of rendering tabs in a vertical orientation in the Desktop (Word) environment – even though they are no longer strictly tabs but nodes in a tree view.
«TabOrientation(Horizontal)» which is the default. Not specifying any orientation of tabs would result in them being horizontal.