Sending planes by time

I know that the Buddy List is not organically linked to the game, however I don't know what is more organical than the sending of planes and communication between buddies.

My idea is to have a selecting panel as a filter on the left side of the Buddy List to send planes
First you can decide whether to send passenger or cargo planes (by a radio button)
then you can set
the planes by time checking the checkbox before them
possibilities:
<10 min
~20 min
~40 min
~1 h
~2 h
~3 h
~4 h
~5 h
~6 h
~8 h
~10 h
~12 h
~13 h
~15 h
~16 h
~18 h
~20 h
It shows only the type of planes by time when selected
Of course, the flight times depend on the rate of tuning and are subject to change accordingly