In GuiXT version 2004 Q3 7, why is the HistoryIcon, top right, (double arrow pointing down) missing?

In GuiXT profile there is a new checkbox "Display history icon".

Using guixt.ini the parameter is called

HistoryShowIcon Yes

The default in guixt.ini is "No".

The reason for the additional parameter is that a number of clients requested the deletion of the HistoryIcon for productive operation, as it occasionally caused them problems. Other clients wish to retain the HistoryIcon during productive operation; it is very useful for testing, for example.