Hello!

This is a game limitation, unfortunately. Clicking the APP button will only select 1 route per beacon. Other airport creators may have worked around this limitation  by adding a duplicate runway, but that's not ideal. Another option is to just add the second route to a different APP beacon, for example the point after VETEK.

I'll have a look if this can be improved in future updates. However, it's a bit tricky due to the way I implemented this feature years ago. The idea was to let the game select the best route based on the current bearing of the plane towards the beacon by one click. In the end  I never actually added it to the default airports.