The last couple of days have been bug chasing for route editing features, mostly as it applies to VNAV calculations. The ability to edit the route in almost any circumstance is very important to simulating real operations. For example, the kinds of things we test are like so....give these a try on other products 1.) Enter a SID only, fly it on LNAV.....then enter an approach while in flight, EXEC....change your mind and enter a new destination airport while flying...select a new approach.....EXEC...begin flying that approach, shortcut to some point further down the approach for grins, EXEC.....enter a SID from the airport you are on approach to..... while on that approach (wipes out the previous route), EXEC... (plane should go into 'climb' phase and begin climbing)...and fly that successfully. 2.) Enter too high a cruise altitude for a short flight (KLAX > KTOA)....the FMS give you a "UNABLE CRZ ALT" warning and then calculates the intersection of the climb/descent "peak" and will change from climb to descend mode automatically as you pass this virtual intersection. OR you can begin to lower the cruise altitude on the CDU and as you do, you can watch the T/C and T/D symbols get closer and closer until you can visually see that you can make the cruise altitude. 3.) Fly a route on LNAV past a DISCO......lnav cuts out...AP needs to revert to hdg and pitch modes....then fly past the point on the other side of the DISCO...it (and the disco boxes) should automatically sequence off the CDU and you should be able to re-engage LNAV and continue on. 4.) Bunch of other crazy tests... Jan is the toughest beta tester I have ever seen...the stuff he does to try and break the FMS is ridiculous. If he can't manipulate it almost exactly as he does in real-life...he cracks the whip! Folks want to learn what its like to operate the real thing.....that means it has to be like the real thing. You know how stable and flexible the real thing has to be? That being said, there are several FMS features yet that we will not ship with V1.0 simply due to lack of time. Most all of these features though are 'fringe features' and certainly do not detract from typical operation most users will utilize. Putting those features in post 1.0 will be as much a matter of team pride as anything as most of the features will rarely get used. Still, we can't help but keep at it. As for right this moment, we're just finishing up a 'flight plan loader"...that will eventually be able to load and save routes. If you want to get a head start on your favorite routes, the format is rather self-explanatory. (format subject to VERY slight changes) Gear up! -tkyler