Click "Add" button
Then select for which partner the interaction should be, set the name of the interaction and select the website for which the interaction should be.
You now need to go to the "My videos" tab and then click on edit for the video in which the interaction is to occur.
Expand the "Additional interactive options" tab and select Your interaction.
Now return to the interaction You created and set the video You selected.
To create Your first slide, select the option that suits You and click the "Add" button