There’s no need to setup a slider. However, you do need a child theme. Rather than sending you to learn how to create one, since you’re “not a techie”, I’ll just tell you what to do, step by step.
1. Create a new folder in your /wp-content/themes called customizr-child
2. Open a notepad, paste this code in it:
/*
Theme Name: Customizr Child
Theme URI: https://mysite.com/
Description: My description
Author: Me
Author URI: https://mysite.com/
Template: customizr
Version: 1.0.0
*/
and save it as style.css in that folder. Make sure that encoding is not Ascii, but UTF8 (it’s in the save panel options, somewhere lower). Also, make sure the file is called style.css, not style.css.txt!
3. Open another notepad and paste this code in it:
add_filter('tc_navbar_display', 'prevent_output_of_this');
add_filter('tc_logo_title_display', 'hide_output_of_this');
add_filter('tc_slider_display', 'this_is_my_image');
function prevent_output_of_this($output) {
return $output;
}
function this_is_my_image($output) {
return 'Replace me with your image!';
}
4. Replace “Replace me with your image!” with the actual html for displaying your image (<img src=”path_to_your_image” />)
5. Save this second notepad as functions.php, also in the customizr-child folder. Upload the new folder, with both files in it, onto your server, in the /wp-content/themes folder, where your customizr folder is.
6. Go to themes in WP admin and activate Customizr Child.
That’s about it.