You can find metrics used across your organisation by going to your Metrics Library.
You can discover new metrics to use by going to the Metrics Store.
Steps
Select My Apps in the top menu
Select Metrics
You arrive in the Metrics Library
There are two libraries:
your Personal Library stores metrics that you are the owner of
your Organisation Library stores
metrics that your organisation is the owner of
metrics used in surveys used by your organisation’s projects
metrics independently added to your organisation’s projects
In either library, use the pagination to scroll through the pages to find the metric you are looking for
On the right of the table are buttons that let you
Edit the metric (if you have permission to)
Add the metric to a project (if it is an Activity Tracker or Attendance Tracker)