Custom shorcuts for viewport navigation

Can EPIC games add to Editor Preferences Mouse Shortcuts (hotkeys?) for viewport navigation? Now we have only UE4 and Maya style navigation, but if user want to change that, he can’t. And not only for Perspective View, but also for Orthographic views (material editor, etc). Example in Perspective we pan Alt+MMB but in Ortho we must use RMB, I think it’s a bit confusing. I am not saying that the default settings should be changed, i ask this option allows you to change default navigation to CUSTOM HOTKEYS (not just presets like Max, XSI, etc) for those who are not comfortable with defaul navigation.