A survey group is a series of surveys that run in succession. Because this rule type is deprecated, you can no longer create survey groups or modify existing survey groups on the Survey Management landing page.
Do not update the Survey Group form directly, because it can lead to unexpected behavior. To achieve functionality in your application that is similar to a survey group, create individual surveys and then call them from multiple Subprocess shapes in a single flow. Surveys and the Survey Management landing page are available when you purchase the Pega Survey application and add the PegaSurvey ruleset to your ruleset stack.