Hello,
I saw the screenshot you attached. Unfortunately there is no such option in Theme Settings to make the tabs closed by default.
You can try adding the following Custom JS Code in the On Document ready JS area under Theme Settings >> Custom JS.
setTimeout(function() {
var $tabs = jQuery( '.wc-tabs, ul.tabs' ).first();
$tabs.parent().find('#tab-description').hide();
$tabs.parent().find( '.tab-title-description' ).removeClass('active');
}, 10);
2) You can manage the content in the HTML Blocks by editing the HTML block of the specific id from Dashboard >> HTML Blocks.
Screenshot for Clarification: https://ibb.co/d43sPTF
Regard’s.
Xtemos Studio.