Editing alternates
Once you have created an alternate version you can edit it just like any other wireframe, including adding assets and symbols. Changes that you make will not affect the original wireframe (known as the Official Version). You can also add notes in the notes panel for the alternate to describe your thoughts on it, or communicate to others about it.
To switch between alternate versions of a wireframe, select the name of a version from the Wireframe Menu (or from the context menu in the Navigator panel). You can also switch back to the Official Version by selecting it in the list.