You can add widgets from external services to a Refined site. For example, widgets from Intercom , and Zendesk , and Jira Service Management make it easy for your users to contact you.
...
To get code for a Zendesk chat widget, go to Zendesk’s website > Settings > Channels > Widget > and create a widget.To get a code for a Jira Service management, open JSM and go to your JSM service project > Project settings > Widget. Choose the widget options that fit your needs and click Save to confirm.
Add the widget to a specific page on a Refined site
...