Hi Peter,
As far as I understand you are talking about two different things. One is the booking and the other the flightplan generated from the booking. I understand the flightplan is generated on the fly, as you said, but it is generated from the details profided in the booking, which is stored in the database untill you actually fly your route and submit a pirep.
What I had in mind was a general multi-line text field in the booking that will also be displayed when you select to view the flightplan. When viewing your booking the data is generated on the fly, but it must come from somewhere, doesn't it?
Anyway, if it's too much to do in the near future, I can understand that. As a solution around the problem I now use Google Notebook. I just copy and paste my flightplan into Notebook and ad there any other details I want, like real world flight number for the an airline, what I also use in the VPA I fly for.
I hope this makes a bit clearer what I was suggesting.
Jeroen