studio-settings.xml

<?xml version="1.0" encoding="UTF-8" standalone="no"?>
<!--
  ~ Copyright (c) 2008-2019 Haulmont.
  ~
  ~ Licensed under the Apache License, Version 2.0 (the "License");
  ~ you may not use this file except in compliance with the License.
  ~ You may obtain a copy of the License at
  ~
  ~  http://www.apache.org/licenses/LICENSE-2.0
  ~
  ~ Unless required by applicable law or agreed to in writing, software
  ~ distributed under the License is distributed on an "AS IS" BASIS,
  ~ WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
  ~ See the License for the specific language governing permissions and
  ~ limitations under the License.
  -->

<studio>
    <functionalitySettings>
        <functionality id="joinedInheritanceDeleteCascade"
                       state="ENABLE"/>
        <functionality id="newFkConstraintNaming"
                       state="ENABLE"/>
        <functionality id="oneToOneIndex"
                       state="ENABLE"/>
    </functionalitySettings>
</studio>