Maybe it doesn't work with every "toolbar-setup". Here's the (tentative) code for my toolbar:
Code:
<PanelFile ID="toolbar">
<Element ID="ToolbarField" X="430" Y="939" Width="421" Height="85" Detach="1">
<Element ID="ToolbarFieldMain" X="0" Y="0" Width="421" Height="85"></Element>
<Element ID="LevelMeter" X="6" Y="76" Width="409" Height="8">
<Element ID="LevelMeterFill" X="0" Y="1" Width="409" Height="5">
<Element ID="LevelMeter_BonusMeter" X="0" Y="1" Width="409" Height="4"></Element>
</Element>
<Element ID="LevelMeterText" X="0" Y="0" Width="409" Height="8"></Element>
</Element>
<Element ID="ViolentModeIndicator" X="0" Y="0" Width="1" Height="1"></Element>
<Element ID="Toolbar_Quickslot" X="-1" Y="37" Width="420" Height="35"></Element>
</Element>
</PanelFile>
Haven't noticed a downside yet (like performance- or graphical-problems).