Hi,
I was able to hide quiz navigation block (fake block) in 3.1 by commenting line 120 in mod/quiz/attempt.php
$PAGE->blocks->add_fake_block($navbc, reset($regions));
After this change, the main quiz block used whole width of webpage.
In Moodle 3.2, when I comment this line, navigation block is hidden, but the quiz is not using whole width of the page (only span9), because there is another aside region (span4)
Does anyone know, how to properly hide this fake block?
peter