Is it possible to freeze Horizontal Arrangement on top of the screen?

I want freeze horizontal arrangement on top of my screen other part of the screen is scrollable ... should it is possible??



Sorry not currently possible. Star issue 2150 herehttps://code.google.com/p/app-inventor-for-android/issues/detail?id=2150&q=scroll&colspec=ID%20Status%20Summary%20Owner%20Reporter%20Stars



Ok.. 
Thanks