Can I install the same plugin file on all of my sites?

Unfortunately, it is not possible at this time.

Each plugin .zip file you download has its own key that is used to associate your site with the site you added to our app. If you install the same plugin .zip file across multiple sites, then all sites that have that plugin installed will log all their data into the site of which you downloaded the plugin .zip file from.

In the future, we will make it possible so you can use 1 plugin .zip file across multiple sites.