[Nektar-users] Time dependent bodyforce

Dear All, I have two questions in regard to the usage of the Nektar++ 4.2.0. 1. Is it possible to define time-dependent body-force for the Incompressible Navier-Stokes solver? Could anyone send me an example? 2. I read in the User Giude that the definition of the geometry can be stored in separate from the remaining configuration. It is not obvious for me how the solver will identify then the geometry or the configuration elements. In this case how should I call the IncNavierStokesSolver? Could anybody send me an example? I really appreciate any help. Best regards, Péter