Editing your variations can be difficult to find at first. Please, follow this guide to learn how to do it.
Access the Experiment Summary
Via the Experiences List of your Project. Just click on the "Experiences" menu item on the top panel of the screen. Now, to edit an experiment you simply need to click on the Experiment name.
Access the Variation from the "Experiment Summary"
Once in the "Experience Summary" you will be able to access the variations in the "Variations" Section. Click on the pencil beside the variation listing to edit them.