Even with the Index and TOC boxes checked, my compiled output
failed to show TOC and Index tabs.
One of the TCS blog posts has a video that provided the
solution.
The default TOC is 'baked in', cannot be deleted, and the
'default' setting cannot be moved from it to another TOC.
To fix:
Create your own TOC -- ideally from your Frame TOC (IMHO).
In the 'Default' TOC, add a TOC placeholder (effectively a
pointer) pointing to the TOC you created.
Hoever you choose to create an index, do the same thing --
use an INdex placeholder.
This was my experience. Only after I performed these steps
did the tabs appear as desired in my project's compiled output.
BTW: If any of the above is incorrect, please post a
correction. Thanks.