create new solution in action

Hello

I have added  an action to the "new" part of the context menu. In that action I would like to add a solution to the project and do some stuff with it. Unfortunately I am failing at step 1 , create a solution. I tried to find a way to do it with project.getRepositoy().... , or with the "newSolution" action that is already there ( which has compiled code in it).

Can someone help me?

Greetings

Jochen