Configuring Tabs on CaseManager7 portal
How to define tabs on the new v7 CaseManager portal? This used to be configured via the WorkArea control in versions prior to v7.x which is deprecated now
If you are using the new Composite portals, the tabs (as well as other settings) are controlled by the harnesses and sections included. Please see https://pdn.pega.com/sites/default/files/help_v71/procomhelpmain.htm#basics/portal/userPortalsAbout/aboutCompositePortals.htm for more details.
The explanation for this behavior is as follows: The WorkArea control has been deprecated in PRPC 7.x, however they are still supported in 7.1. Instead of Work Area controls we've introduced the "Dynamic Containers" that you can use to define tabs.