@xfok,
1. Download and Install "Code Snippets" Plugin for WordPress
2. Open Dashboard > Snippets > Add New
3. Write a Title
4. Add the Below Code, Check the "Only run on site front-end" Checkbox and press Save Changes and Activate
add_action( 'wp_footer', function () { ?>
<script>
jQuery(document).ready(function ($) {
if (typeof wpforo_editor !== 'undefined') {
$('#wpforo-wrap').on('click', '.wpforo-qa-comment, .wpforo-reply.wpf-action.wpforo_layout_4', function () {
setTimeout(function(){
wpforo_editor.set_content('', $('.wpforo-post-form').data('textareaid'));
}, 100);
});
$('#wpforo-wrap').on('click', ".wpforo-reply:not(.wpforo_layout_4)", function(){
setTimeout(function(){
wpforo_editor.set_content('', wpforo_editor.get_main());
}, 100);
});
}
});
</script>
<?php } );