The current goal or conversion set-up in App+ Web set up is event based,. This means that while an action such as button click or form fill can be tracked/counted as a goal or conversion, unfortunately goals such as sessions that last a specific amount of time or users who have viewed a set number of pages can’t. We are hoping for Google to add these as new features for their next update.
Events can be set to become “conversion” (goals). Each event reporting can be supplemented with additional parameters available in the event hit (eg for file_download” event parameters could be “File name” “click link URL”, “page title” etc)