Story Analyser for Jira - Analysing Stories
If ScopeMaster has been enabled for that project, you will see the button below on each user story issue page, click on on this to expose the "Analyse now" button.

Then you can trigger the analysis by clicking on the Analyse now button as shown below.

This will take a few seconds and then reload the user story page to expose the results for both quality grade and functional size in COSMIC Function Points (CFP).
Note:
The Story Analyser will only analyse Jira issue types of Story. Other issue types are not analysed.
Warning:
Do not change story issue keys, these are used by ScopeMaster to synchronise stories.