| name | type | default | params | representant | foreign | foreign_prop | position |
| id | CO_INTEGER | SEQUENCE | READONLY=1;HIDDEN=1 | 0 | 0 | ||
| version | CO_INTEGER | 0 | READONLY=1;HIDDEN=1 | 0 | 0 | ||
| deleted | CO_INTEGER | 0 | READONLY=1;HIDDEN=1 | 0 | 0 | ||
| inherits_acl | CO_INTEGER | 1 | HIDDEN=1;READONLY=1 | 0 | 50 | ||
| id_foreign1 | CO_INTEGER | 1 | READONLY=1 | 0 | meta_tree | id | 100 |
| id_foreign2 | CO_INTEGER | 1 | READONLY=1 | 0 | meta_tree | id | 150 |