We have used the Tabbed Group with an added dynamic container, this will enable the user to open and work on multiple cases at the same time, but Pega has deprecated the Tabbed Groups and suggesting to use Layout Groups. The problem is we are not able to embed a dynamic container inside a Layout Group. How can we achieve the desired configuration of being able to open multiple tabs with Layout Groups and Dynamic Container.
Beginning with Pega 7.3, tab groups have been replaced with layout groups, which offer better performance and flexibility. Tab groups are based on the Yahoo User Interface (YUI) library, which is no longer supported on the Pega 7 Platform.
User interface rule forms now use layout groups instead of tab groups to place layouts in forms.
For more information on Layout group refer the below link,