In relation to #2130 we need to add some more general and universal multiphysics solvers. These will be able to solve the PNP questions, but also be more general and universal. This is a big undertaking, so is probably a "future feature" (i.e. 3.1) project.
We have added TransientMultiphysics solvers to the contrib folder already. We might want to do steady state at some point, but this issue is now essentially done.
In relation to #2130 we need to add some more general and universal multiphysics solvers. These will be able to solve the PNP questions, but also be more general and universal. This is a big undertaking, so is probably a "future feature" (i.e. 3.1) project.