Reference to the thread on dev list: https://ofbiz.markmail.org/thread/3j7cndhig5oknknq
Attempts to call lookup.js function set_multivalues() from a lookup screen fail with the console logging error:
No framework or plugins appear to currently use this function.
The set_multivalues() function should be useful for populating multiple fields (e.g. a Postal Address) on a form from a lookup.