Tried to change a flight today shortly after booked... "a technical error has occurred.. etc."

Of course, I got far enough along in the process to have some suggestions for whenever it's actually fixed...

I thought that it might be nice tollow selection (by button or check box) of a more detailed list of things one might want to change...

• Individual flight segments
• Date only
• Fare Class
• Routing (same start/end city pair)

For example, in my case I was trying to coordinate award + paid travel. it was difficult to get one of the flights to match (HA codeshare). I just wanted to change the HA segment to match the award itinerary I found.

One off-topic suggestion: provide a way to purchase identical itineraries on miles/paid... option could be offered on the purchase screen: purchase additional seats for miles/cash?