Jira Asset value automatically fill on customfield

[Urmo]

Hi

Have anybody allready built some script that when Value x have priority low, then Jira Service Management ticket automatically fill it for support. Right now user have to fill it manually even that field have only one value.

For sample we have build Asset schema where we hold services and every service have one priority (Teenuse kriitilisus).

Now when i make form for end user and he or she select service Atlassiani tooted then he have to fill field.

I form it just show Automatic.

I find that there is some ticket in Atlassian https://jira.atlassian.com/browse/JSDSERVER-7542 but like usually its just gathering intrests but have anybody build something for this problem?