BuddyPress.org

Give this a try: (add to bp-custom.php) 1) & 2):

function bpfr_hide_tabs() {
global $bp;

	if ( bp_is_user() && !is_super_admin() ) {
		bp_core_remove_nav_item( 'notifications' );
		bp_core_remove_subnav_item( 'messages', 'compose' );
	}
	
}
add_action( 'bp_setup_nav', 'bpfr_hide_tabs', 15 );

3) With BP and xprofile component activated, a user doesn’t need access to WP dashboard. He can change his profile credentials from front-end.
Easiest way would be to use this plugin.

Retrieving them the possibility to change their email is anyway not a good idea. What happen when a user changed from yahoo to gmail, but can’t login because he lost his password ? Where will the new pwd be sent ?

Perhaps you have also to remove this from the BP usermenu on toolbar ?
Here’s how you can do it:

function admin_bar_remove_this(){
global $wp_admin_bar;
	$wp_admin_bar->remove_node('my-account-messages-compose');
}
add_action('wp_before_admin_bar_render','admin_bar_remove_this');

@masoud1111,

thank you for your appreciation. And sorry for my confusion about setting > general. That’s traditionnally the path used on admin dashboard. In regard of the picture, it’s the mandatory wp registration email field. This part is on your-site/members/USERNAME/settings.

The template file you can modify is members/single/settings/general.php
In that file is a form who contains a label and a input type for “email”. To hide, you could add a conditionnal for admin’s only.

For example, before both label and input lines, add

<?php if(is_super_admin() ): ?>
   <label>bla
   <input>bla
<?php endif; ?>

To be complete, you may want to show message to explain about the email field. In that case, add something like following above:

<?php if ( !is_super_admin() ) : ?>
<p>Ask site admin if you want to change your email address.</p>
<?php endif; ?>