What is the difference between what you're describing and simply clicking "Every Day" when setting up a route?
The only difference I can tell is that when you do one "every day" they've all got the same flight number; and you seem to want them all separate flights. But I can't figure out why you'd have any desire to have them all be a different flight number anyway.
The reason for this request is simple: If I choose the everyday option, I cannot put this flight on 7 different planes. I try to schedule my planes light that: Plane 1 - flight a on monday, flight b on monday night, flight c on wednesday etc. Then Plane 2 - flight a on tuesday, flight b on tuesday night, flight c on thursday and so on and so on. In the end I have the same schedule for seven planes, always moved up one day. (this allows a much higher utilisation of the plane)
Right now the only way of doing this is in creating one flight and than "create another route like this", always advancing one day. This is a lot of clicking.
I would like to see an otion where I can choose to separate the "everyday" flight to seven different ones, so that it is easier to schedule to seven different planes. I guess the easiest way would be to put a checkbox next to selection of the flight days, asking if you want to create this as one flight or seperate flights.