crew inside scaling parts effect?

[Scientist]

i don't have much time to explore ideas due to holidays, but figure i'd toss it out to the curious people

labs such as station science mod lab makes 1 eureka/hr, if 3 crew inside it to run it, 1-2 can only twiddle thumbs

then theres keepfit adds a static 'how cramped is it' value to things, such as that same lab is 'cramped'

but that lab holds up to 4 kerbals, you'd figure if only 1 inside, its more roomy, 4 would be cramped

cases like these 2 mods, would raise flexibility of play if the effects were based on crew inside at the time

i had the thoughts that a quick fix might be doable with module manager, such as 1 crew runs lab 20% speed

2 at 50%, 3 at 100%, 4th 110%? by adding 4 scaled modules to the part, but no idea how to get keepfit to work for it

anyways just tossing the idea out before i run, be nice if limited to modulemanager code