Hi, I solved this by making some changes as follows:

1. created own bundle to override some actions & services of nuxeo.
2. overridden group schema to add ownerId in that. With the help of https://doc.nuxeo.com/nxdoc/how-to-add-new-fields-to-the-user-profile-or-group-profile/

<?xml version="1.0"?> <xs:schema targetNamespace="http://www.nuxeo.org/ecm/schemas/group" xmlns:xs="http://www.w3.org/2001/XMLSchema" xmlns:nxs="http://www.nuxeo.org/ecm/schemas/group"> <xs:include schemaLocation="base.xsd" /> <xs:element name="groupname" type="xs:string" /> <xs:element name="grouplabel" type="xs:string" /> <xs:element name="description" type="xs:string" /> <!-- references --> <xs:element name="members" type="nxs:stringList" /> <xs:element name="subGroups" type="nxs:stringList" /> <!-- inverse reference --> <xs:element name="parentGroups" type="nxs:stringList" /> <!-- multi tenant --> <xs:element name="tenantId" type="xs:string" /> <xs:element name="ownerid" type="xs:string" /> </xs:schema>

1. altered groups table added new column ownerId

2. created new menu to show group by creating new action

   `<action id=“VirtualGroupsManager” link=“/users/view_groups.xhtml”

       label="label.groupManager.groups" type="admin_rest_document_link"
       order="40">
       <category>NUXEO_ADMIN</category>
       <filter-id>user_manager</filter-id>
       <filter-id>not_readonly</filter-id>
   

   `

3. overridden UserManager service to save ownerid while creating new group & to add ownerid filter while retrieving groups.

There's no record of who created a group. Indeed in some cases they come from an external system (LDAP, Active Directory). So what you're suggesting is not possible.