Add option to only edit flowsettings

[diedekerkhof]

Is your feature request related to a problem? Please describe.
When trying to add a impicit exit, the adding doesnt work because a gebuild of the flow is triggerd by the model.

Describe the solution you'd like
Only trigger the flow rebuild when changing flowsettings

[philipsens]

You could make a function that only returns the flowSettings. In that function, you could check each setting to see if it's an instanceOf FlowSettings of if the Keys of the class include the setting.