Simulating two time dependent study

Hi comsolers,

I have two study: modelling subsurface flow(using Richards equation), study solute transport study which both of them are time dependent (transient study).
How is it possible to couple two time dependent study? I want also to impose for the solute transport model to use the values that were simulated with Richards equation model as inputs to the second one?

could you kindly tell me is it possible to do it? how?

Thanks in advance for your suggestions.
Sepideh