Hello,
1. Sidebar: add this code to the Theme Settings > Custom CSS > chose the device which you want to hide the sidebar on:
.tax-product_cat .main-page-wrapper .container .content-layout-wrapper .col-lg-9 {
width:100%!important;
min-width:100%;
}
.tax-product_cat .main-page-wrapper .container .content-layout-wrapper .sidebar-container {
display:none;
}
2. You can change the size of the image in Appearance > Customize > WooCommerce > Product Image
Adding close button will require WooCommerce customization what is not covered by our support.
3. Brand carousel – Add this code:
.brands-items-wrapper .owl-carousel .owl-nav>div {
transform: translateY(0);
-webkit-transform: translateY(0);
opacity: 1;
visibility: visible;
pointer-events: visible;
}
4. My Account – add this element in the Header Builder for desktop and configure to show in the sidebar: http://prntscr.com/l6m2yc
If the code does not work, please provide valid site admin access.
Best Regards