If you do not tick any other component apart from
"GuiXT" in GuiXT profile, the license keys are still not necessary, as before.
But you need to tick "GuiXT", unlike with older GuiXT versions, where you
could leave the component selection empty.
With GuiXT version 2015 Q3 2, delivered with
SAP GUI 7.40 PL5, GuiXT will again automatically assume "Component GuiXT" if no
component is chosen.