Set.Focus in Grouplist Controls? (onload)

Looking for a way to set the Focus on the 2nd List in a Groulistp Control (<onload>Controlgroup.SetFocus(9050,1)</onload> or something similar)

Think of it like if in estuary always the first widget should be focused, as soon u enter "Home".

is there a solution?

Did already try

<onload>SetFocus(9050,1)</onload>



<onload>Control.SetFocus(9050,1)</onload>



<onload>ControlGroup.SetFocus(9050,1)</onload>

"9050" is the ID of the Grouplist which holds the Lists/fixedlists (Widgets).