Request SetInfoText() in event OnSelectST()
SetTitleText() works today.
Ex
event OnSelectST()
if ShowMessage("Text?", true, "Yes", "No")
SetTextOptionValueST("Progress 1...")
SetInfoText("Description on progress 1")
Funktion1()
SetTextOptionValueST("Progress 2...")
SetInfoText("Description on progress 2")
Funktion2()
endif
endEvent