Hi,
To know the ISV objects implications.
[ExtensionOf(classStr(ClassToExtend))] - class
[ExtensionOf(formstr(FormToExtend))] - Forms and its methods
[ExtensionOf(formdatasourcestr(FormToExtend, DataSource1))] - Form Datasource and its methods
[ExtensionOf(formdatafieldstr(FormToExtend, DataSource1, Field1))] - Form Datasource fileds and its methods
[ExtensionOf(formControlStr(FormToExtend, Button1))] - Form Object and its methods
[ExtensionOf(tablestr(TableToExtend))] - Table methods
[ExtensionOf(tableStr(DataEntityToExtend))] - Entity methods