SOE RDS allows you to control the flavor of database and the instance sizes available to relevant groups in your organization.
Click on Modify of any database and add a new role or edit or delete an existing role.
Click on Add new Role, select the role you will allow to create new RDS and which Instance Type, then click on Save to finish.
Only the allowed Configurations will be available on the Build - Template Designer.
Click on Edit action to modify the same options of Add new Role process or Delete icon to remove a role.