OMG, great !
TYVM Moebius !
I get it working, but I still have to scale the toolbar to 0.99 or 1.01 to get the buttons clickable.
Code:
<PanelFile ID="ID_UISkin_Toolbar">
<Element ID="ToolbarFieldMain" ....
...
...
...
<Element ID="Toolbar_Quickslot" ....
<Element ID="Toolbar_Quickslot_Page" X=" something " Y=" something " Width="26" Height="60"></Element>
</Element>
</PanelFile>
Any idea about the cause and the cure ?