Find a list of all your metrics from the left navigation panel under "Metrics". This will take you to a list of every metric in your model. You can also use this page to filter metrics by certain attributes.
Additionally, at the top of all pages in Transform, there's a metric search bar which is also a live typeahead.
You can scroll through all metrics without searching, search for terms to find and explore metrics, or hit enter without searching - which will take you to a list of all metrics.