Please note: This plugin is just intended to give general information on the number users that are logging in to your workspace. For more accurate and reliable counters, or additional statistics tools, you may want to use a third-party statistics service.
Go into edit mode on your workspace by clicking the "Edit" tab.
Click the "Insert" button, and choose the "# of visitors plugin from the "More Plugins -> Page Information" category.
This is a simple web counter, so there are no options available. Click "Insert Plugin" to insert the plugin into the page.