[xwiki-users] How to model/build parent child relation

Hi I'm looking for best practises to develop a parent two child relationship in XWiki I have the following class model Association having one or more XWiki.Users with one-role per association Association having one or more regions XWiki.Users can be associated to one or more associations in one role per association Principles (off course I can deviate from it when really smart to do); Would like to use as much as possible out-of-the-box functionality of XWiki 2.7 or higher Would like to use LiveTable for grid-display of childs Would like to use generated forms for editing Lookup lists based on class-object My main form would be a form based on association where you can navigate using first, previous, next and last having a livetable with Roles/XWiki.User and a second livetable showing regions Next to each livetable there should be Add,Modify and Delete function for child records (Roles and Regions) Who knows/have examples with look-alike requirements? Gerritjan