The following entries from keymaps.xml are examples of those ignored by the current SVN version of the helper. They work just fine in the beta provided at the start of this thread:
<!-- F3 --> <button id="55">XBMC.ActivateWindow(videolibrary,movietitles,return)</button>
<!-- F2 --> <button id="54">XBMC.ActivateWindow(videolibrary,tvshowtitles,return)</button>
<!-- F4 --> <button id="56">XBMC.ActivateWindow(Weather)</button>
<!-- F5 --> <button id="93">XBMC.updatelibrary(video)</button>
<!-- F7 --> <button id="95">XBMC.Container.NextViewMode</button>
<!-- F8 --> <button id="96">XBMC.Container.PreviousViewMode</button>
(Ignore the oddly placed spaces, it's just a formatting error in the reply window)
<!-- F3 --> <button id="55">XBMC.ActivateWindow(videolibrary,movietitles,return)</button>
<!-- F2 --> <button id="54">XBMC.ActivateWindow(videolibrary,tvshowtitles,return)</button>
<!-- F4 --> <button id="56">XBMC.ActivateWindow(Weather)</button>
<!-- F5 --> <button id="93">XBMC.updatelibrary(video)</button>
<!-- F7 --> <button id="95">XBMC.Container.NextViewMode</button>
<!-- F8 --> <button id="96">XBMC.Container.PreviousViewMode</button>
(Ignore the oddly placed spaces, it's just a formatting error in the reply window)
