Customising the WordPress Admin Experience

Remove the default dashboard widgets

Goes in your functions.php file

function remove_dashboard_meta() {
	remove_meta_box( 'dashboard_incoming_links', 'dashboard', 'normal' );
	remove_meta_box( 'dashboard_plugins', 'dashboard', 'normal' );
	remove_meta_box( 'dashboard_primary', 'dashboard', 'side' );
	remove_meta_box( 'dashboard_secondary', 'dashboard', 'normal' );
	remove_meta_box( 'dashboard_quick_press', 'dashboard', 'side' );
	remove_meta_box( 'dashboard_recent_drafts', 'dashboard', 'side' );
	remove_meta_box( 'dashboard_recent_comments', 'dashboard', 'normal' );
	remove_meta_box( 'dashboard_right_now', 'dashboard', 'normal' );
	remove_meta_box( 'dashboard_activity', 'dashboard', 'normal');
}
add_action( 'admin_init', 'remove_dashboard_meta' );

Remove the Welcome Panel

Goes in your functions.php file

remove_action( 'welcome_panel', 'wp_welcome_panel' );

Remove the Screen Options Tab

Goes in your functions.php file

add_filter('screen_options_show_screen', '__return_false');

Remove the Help Tab

Goes in your functions.php file

add_action('admin_head', 'mytheme_remove_help_tabs');
function mytheme_remove_help_tabs() {
	$screen = get_current_screen();
	$screen->remove_help_tabs();
}

Remove the default WordPress widgets

Goes in your functions.php file

function unregister_default_widgets() {
	unregister_widget('WP_Widget_Pages');
	unregister_widget('WP_Widget_Calendar');
	unregister_widget('WP_Widget_Archives');
	unregister_widget('WP_Widget_Links');
	unregister_widget('WP_Widget_Meta');
	unregister_widget('WP_Widget_Search');
	unregister_widget('WP_Widget_Text');
	unregister_widget('WP_Widget_Categories');
	unregister_widget('WP_Widget_Recent_Posts');
	unregister_widget('WP_Widget_Recent_Comments');
	unregister_widget('WP_Widget_RSS');
	unregister_widget('WP_Widget_Tag_Cloud');
	unregister_widget('WP_Nav_Menu_Widget');
}
add_action('widgets_init', 'unregister_default_widgets');

Remove Sidebar Menu Items

Goes in your functions.php file

function remove_menus(){
	remove_menu_page( 'index.php' );                  //Dashboard
	remove_menu_page( 'edit.php' );                   //Posts
	remove_menu_page( 'upload.php' );                 //Media
	remove_menu_page( 'edit.php?post_type=page' );    //Pages
	remove_menu_page( 'edit-comments.php' );          //Comments
	remove_menu_page( 'themes.php' );                 //Appearance
	remove_menu_page( 'plugins.php' );                //Plugins
	remove_menu_page( 'users.php' );                  //Users
	remove_menu_page( 'tools.php' );                  //Tools
	remove_menu_page( 'options-general.php' );        //Settings
}
add_action( 'admin_menu', 'remove_menus' );

Remove ONE Sidebar Menu Item

Goes in your functions.php file

function remove_comments_menu() {
	remove_menu_page( 'edit-comments.php' );
}
add_action( 'admin_menu', 'remove_comments_menu' );

Remove the Comments menu

Remove the Comments Count Column

Goes in your functions.php file

add_action( 'init', 'my_custom_init' );
function my_custom_init() {
	remove_post_type_support( 'post', 'comments' );
	remove_post_type_support( 'page', 'comments' );
}

Remove the Edit, Quick Edit, Bin and View Links within Posts Admin

Goes in your functions.php file

add_filter( 'post_row_actions', 'remove_row_actions', 10, 1 );

function remove_row_actions( $actions ) {
    if( get_post_type() === 'post' )
	unset( $actions['edit'] );
	unset( $actions['view'] );
	unset( $actions['trash'] );
	unset( $actions['inline hide-if-no-js'] );
    return $actions;
}

Remove All TinyMCE Items

Goes in your functions.php file

function my_format_TinyMCE( $in ) {
	$in['remove_linebreaks'] = false;
	$in['keep_styles'] = true;
	$in['accessibility_focus'] = true;
	$in['media_strict'] = false;
	$in['paste_remove_styles'] = false;
	$in['paste_remove_spans'] = false;
	$in['paste_strip_class_attributes'] = 'none';
	$in['wpeditimage_disable_captions'] = true;
	$in['plugins'] = 'tabfocus,paste,media,fullscreen';
	$in['content_css'] = get_template_directory_uri() . "/editor-style.css";
	$in['wpautop'] = true;
	$in['apply_source_formatting'] = false;
	$in['block_formats'] = "Paragraph=p; Heading 3=h3; Heading 4=h4";
	$in['toolbar1'] = 'bold,italic,strikethrough,bullist,numlist,blockquote ';
	$in['toolbar2'] = 'formatselect,underline,alignjustify,forecolor ';
	$in['toolbar3'] = '';
	return $in;
}
add_filter( 'tiny_mce_before_init', 'my_format_TinyMCE' );

Full List Here: https://codex.wordpress.org/TinyMCE

Remove Some TinyMCE Items

Goes in your functions.php file

function my_format_TinyMCE( $in ) {
	$in['toolbar1'] = 'bold,italic ';
	$in['toolbar2'] = '';
	return $in;
}
add_filter( 'tiny_mce_before_init', 'my_format_TinyMCE' );

Full List Here: https://codex.wordpress.org/TinyMCE

Disable the Plugin
and Theme Editor

Goes in your wp-config.php file

define('DISALLOW_FILE_EDIT', true);

Disable Updates and Installations

Goes in your wp-config.php file

define('DISALLOW_FILE_MODS',true);