...
via the customer details page or
via the issue glance context in a linked issue.
To edit a customer in the customer details page, open it by:
...
For inline editing in the issue glancecontext, open a Jira issue and scroll down until you see the Crumbs glancecontext. Click 'Linked customer(s)' to expand it. If there is a linked customer, simply hover your mouse over a field and click it to edit it!
...