In the Advanced Options of the settings for each space/group, the option to select Activity+Pages or Overview is no longer available. In its place, it shows Locale.
This article will guide you on what to do if the Activity/Overview Group Page option is not showing.
Jive Interactive Intranet - Jive Core
The system property widgets.enabled is set to
To enable the Activity/Overview Group Page Options, set the system property widgets.enabled =
On-Premise customers can refer to the article Configuring System Properties for the steps on how to edit system properties. Hosted and Cloud customers should instead open a ticket into the Jive Support Portal in order for this change to be performed by a Jive Support Agent.