Thank you. Ok, here goes nothing. Orbiter is an incredible simulator for space flight, but there are some aspects related to life in space that are requested and never get completed. I remember hearing somebody complain that orbiter isnt really designed for simulating things like moonbase alpha, but other programs are. So, maybe a way to replace this could be to create applications that run in the orbiter directory, simulating the spaceflight portion as simple number crunching, (like Orbiter ng does without a graphics client) and simulates a first person view, underwater travel, or almost anything else.
I was thinking that an application to simulate this
www.youtube.com/watch?v=kPPnPcPBNQg
(If the link is wrong just search Mission to Europa on youtube)
could be the first proof of concept on how this works, with a first person simulator coming later.
In Orbiter, the transition for the example would go as follows,
land spacecraft on Europa, save scenario
Open OrbiterOcean (or whatever the application would be called) and load the scenario file you just saved, exploring Europas ocean while your orbiter simulation continues, then go back to the surface when finished, save the scenario and reload in orbiter.
Okay

What do you think?