On the PC/Rift version the Primary Thumbpad Down behaves as the global Back.
I have Global back mapped to Primary trigger and Primary Thumbspad Up, Global Prev/Next to Primary Y. Under Player I have Zoom/Zoom UI mapped to Primary Thumbpad Y.
When I am in a folder file list and press the thumbpad up the list scrolls. When I press the pad down the list goes back a view e.g. previous folder.
When I am viewing a video pressing up zooms in. Pressing down performs a back and closes the viewer. If the UI is open the view will zoom out.
Setting the mappings back to default does not fix the problem. Neither does reinstalling DeoVR.
