phaidon/Wikula — comment on commit 7bc9db668ef89f508413bd600db781faa9bf31d5
File: src/modules/Wakka/lib/Wakka/Api/Transform.php line 197
By phaidon:

The content of the innerIndexBox will hide if click to hide text. It's visible by default.

To see the box you have activate it in the Wakka (not Wikula) admin settings.