Mohammad Taqui Sayed

I m not sure which featured image you are trying to remove however if you are trying to remove the small thumbnail on the home page you can use this css

.home .entry .attachment-thumbnail{display:none}

Let me know.

Well there are two ways ,

1) Go Under Apperance > Editor find top-most.php file, and replace the text Category to the one you want and then paste this css in Supernova Options > Styling > Custom Styles.

.header_catnav .catnav ul a {width: 194px;}

2) Paste this in Supernova Options > Manage Ads in any of the text field.

<script>
jQuery(document).ready(function(){
jQuery('.header_cat_title').find('.first_cat').html('Sint-Jozefscollege').fadeIn();
});
</script>
<style>
.header_catnav .catnav ul a {width: 194px;}
.header_cat_title .first_cat{display:none}
@-moz-document url-prefix() {
  .header_catnav .catnav ul a {padding-right: 11px;}
}
</style>

If you have created a child theme, you should opt for the 1st one. The 2nd option is a lame way of doing it.

Sorry the theme doesn’t have that option. What text would you like in place of that?

I dont see any problem which plugin are you using?

I think you are talking about ‘leave a comment’ text, no there is no option but you can hide it by pasting this small css under Appearance> Supernova Options > Styling > Custom CSS.

.leave_comment {display:none}

Thanks, that’s in includes/top-most.php
What do you suggest that text should be by the way?

Its actually not the slider but the images that you have uploaded take time to load, so the more lighter images you use, the faster the slider will load. If you check it on the demo site http://supernovathemes.com/supernova/
it loads almost immediately.Consider compressing your images.
However if you want to show the slider while the page is loading you can paste this css under Apperance > Supernova Settings > Styling Custom CSS

#content #supernova_slider_wrapper{visibility: visible;}

You have two sidebars , ‘Sidebar Home’ and ‘Sidebar Page’.
‘Sidebar Paqe’ show on all pages other than home, so drop all your widgets that you have in Sidebar home to sidebar page also.