When you extend the 'Person' table with additonal custom properties.
 Those properties can be found in schema endpoint without any additional configuration:
 
 apiserver/imx/entityschema
 "portal/person/masterdata": {
 ...
 "CCC_SomeProperty": {
 "ColumnName": "CCC_SomeProperty",
 
 Now when you extend the properties of other tables like 'ESet' or 'ShoppingCartItem'
 Those properties or not visible in the schema endpoint.
 "portal/resp/eset"
 "portal/cartitem"
Can some shed some light on this.
Thank you,
Niels