thanks for answering singleseater! on the airbus aircraft you activate the "bird" and the flight path director (recommended on airbuses for NPAs) via the HDG-VS/TRK-FPA button above the AP master switches. And tha 380 has this one at the same position, too. So I thought that the velocity vector is not the bird but maybe you can use the button to engage it aditionally in HDG-VS mode with the common FD bars.......