One of the most top requested features for Refined for JSD Jira Server is has been to show the display SLA information on the customer request form.
Status from Refined
Currently it is not possible to provide this feature due to limitations of the APIs at our disposal. As soon as this is made available via APIs from Atlassian (and in the Atlassian product), we will make it available via our product as well.
If you have ideas for new features you can raise a feature request through our support portal.