Go to your Windsor.ai configuration.

Connect Google Analytics (1)

Select the view you would like to have multitouch attribution for (2)

Select Use multi-touch attribution (3)

Select your goals and/or if you want to optimise e-commerce revenue (4)

Congraulations! Now multitouch attribution is set up

Login to http://onboard.windsor.ai/

Select the new goal to add

Then its finished and the new data will appear in a few hours.