Description
'User in Groups' will verify that the current user is in at least one of the specified groups.
There is a 'User Is In Group' condition in standard Jira, which only lets you verify the membership of the user against a single group.
Configuration
You must specify the groups when configuring the check. For example:
Example
A workflow is configured so that the 'Resolve' transition has the 'User in Groups' check. If the user is a developer, and the issue is a Story, a sub-task will be created for the QA Analysis.