You can find metrics used across your organisation by going to your Metrics Library.
You can also find metrics by going to the Explore page. (How to search for a metric via the Explore page)
Steps
Metrics is the catch-all term used for outcomes and progress trackers
Use the Metrics Library
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, you can use Search for a metric option at the top of the metric table to search through the available metric.
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)