Currently there are four core interface buttons (f5-f8) that can be activated during flight. And there are interfaces behind interfaces. Status (f5) can be activated twice for example.
Oxp interfaces are preferred to be implemented via primable equipment. I feel that in some cases adding interfaces to interface button chains (f5-f8) would be more natural. Of my oxps for example Market Inquirer that shows the markets of some oxp stations would feel more natural if found by pressing f8 twice (or thrice if there is some other oxp showing it's screen first).
So, could there be a mechanism to add oxp screens after core interface screens when in-flight? Something like setInterface does for stations at the moment.
And we need to make sure that OXP do not conflict with keys. At the moment Explorers club and Flight log are conflicting with use of F5-F5-F6 keys. I can get to Explorers club screens in flight but not able to view Flight log.
I guess that means Explorer's Club and Flight Log have to be updated for 1.77.1.
Also, my thought on interfaces in flight is that most of them should use - starting from 1.79 - the MFD or whatever the fancy small green infoboxes are named.