Hi Dennis,
Yes it is possible to achieve nested Tabs with 8.103.0.30. However 8.103.0.30 donot support view customization features i.e (<%=Html.Tab("Child_Tab2").TargetControlId("Child_Tab2_Contents")%>).And you also need to define both the HtmlHelper and the child tab contents within the content portion of the parent tabs.
For further information please refer:
http://help.syncfusion.com/UG/User%20Interface/ASP.NET%20MVC/Tools/Documents/4232addingtabstoamvc.htmWe also recommend you to upgrade to the latest version 8.2.0.18 which has major features like:
1. View Customization - eases the coding at the controller for setting a control’s property
2. Skins - Support for 14 new themes that enhances the visual appearance
Let me know if you have any queries
Best Regards,
Premkumar D