Reportbuilder is now functional when accessed via URL.
Url needs entityName, entityId, and the view.

example: http://localhost:8080/menu/main/reportbuilder?entityName=celiacsprue&entityId=id_103&view=entityreport

view indicates the name of a free marker template e.g. "view-" + view + ".ftl"
An example Freemarker template that receives entity data from the report builder