Use process flow variables as form input.

I am trying to fill a view's form within a process flow on the add row action.

Let me give some context
I have a view in my application that is used to create a “klus” this view uses a process flow to achieve that goal. 

Now i am trying to design a new process that creates a “klus” triggered by a task on another table. Some of the values of this table i want to be present in the form on the add row action.
I added a new alternate starting point for the flow that opens the view and passes the required values as process variables. I however cant seem to get them into the form.

I have tried adding them into the input parameters of the add row process action but this does not seem to work. Am I missing a step somewhere?

Greet Anne