Is it possible to change localhost to a specific IP for Edge UI?

No, changing the JetAdvice Edge localhost to a specific IP address is not possible.

JetAdvice Edge only uses the localhost by design for security reasons.
If it were to be advertised on an IP address other than localhost it could be accessed from outside the Server or PC.

Settings for JetAdvice Edge can be managed through the JetAdvice portal remotely after it is installed and started.