What you can do in USQL is the following query: SELECT useraction.name, COUNT(bounce) FROM usersession WHERE useraction.application='YOURAPPLICATION' GROUP BY useraction.name. You can also narrow it down with an AND seraction.name=YOURUSERACTION
And then chart and pin it to a dashboard
Below is the query to get bounce in USQL -
SELECT useraction.name AS "UserAction Name", count(bounce) AS Count FROM usersession WHERE useraction.application='Test' AND bounce IN (true) GROUP BY useraction.name
we need to add bounce to True to get only useraction that were bounced.