How can I make scrollbar and buttons located bottom-right navigable by d-pad

Code:
<include name="MainWindowMouseButtons">

<control type="group">

<left>120r</left>

<top>55r</top>

<animation effect="fade" time="200" condition="Window.Previous(Home)">WindowOpen</animation>

<animation effect="fade" time="200" condition="Window.Next(Home)">WindowClose</animation>

<visible>system.getbool(input.enablemouse)</visible>

<control type="button">

<description>Back push button</description>

<left>0</left>

<top>0</top>

<width>45</width>

<height>45</height>

<label>1036</label>

<font>-</font>

<onclick>back</onclick>

<texturefocus border="5">floor_buttonFO.png</texturefocus>

<texturenofocus border="5">floor_button.png</texturenofocus>

<onleft>50</onleft>

<onright>50</onright>

<onup>50</onup>

<ondown>50</ondown>

</control>

<control type="image">

<description>Back Icon</description>

<left>5</left>

<top>5</top>

<width>35</width>

<height>35</height>

<aspectratio>keep</aspectratio>

<texture>icon_back.png</texture>

</control>

<control type="button">

<description>Home push button</description>

<left>55</left>

<top>0</top>

<width>45</width>

<height>45</height>

<label>31003</label>

<font>-</font>

<onclick>ActivateWindow(home)</onclick>

<texturefocus border="5">floor_buttonFO.png</texturefocus>

<texturenofocus border="5">floor_button.png</texturenofocus>

<onleft>50</onleft>

<onright>50</onright>

<onup>50</onup>

<ondown>50</ondown>

</control>

<control type="image">

<description>Home Icon</description>

<left>60</left>

<top>5</top>

<width>35</width>

<height>35</height>

<aspectratio>keep</aspectratio>

<texture>icon_home.png</texture>

</control>

</control>

</include>