The Remove watchers from current issue post function allows you to remove all watchers from the current issue when a workflow transition is executed.
Activate the JQL condition option and define the JQL query that has to be met by the issue in order to execute the post function (e.g. “type = Bug and Priority = Blocker”)
Activate the Executor condition option if you want the post function to be executed only if the user is or isn’t in a certain Jira user group or project role
Select if The executor has to be or can’t be a member of a certain Jira user group or project role
Select a Jira user group in the Group field if Group was set in the member of a field
Select a project role in the Project role field if Project role was set in the member of a field