Custom parameters

[Bilo]

It would be nice if one could set his/her own parameters to be used in the gravity formulas.
Even a few o fixed name parameters to be set in numeric input fields would be enough.
This way it would be possible to change the behaviour of a law without the need to rewrite it.

[testtubegames]

Ah, interesting. Like variables 'A,B,D' or something you could set in some separate fields. I like it - could be helpful for sure!