i like simulate solitary wave with designsphysics ,how can i do it?

in the designsphysics at the motion defined 1st order and 2nd order
the last version of dualsphysics in example execution solitary wave, at wave paddles.how define wave paddles in freecad?and in special icon Inlet/Outlet dont work its common

i need help to model the solitary wave in designsphysics, please help me