BuddyPress.org

https://codex.buddypress.org/extending-buddypress/changing-internal-configuration-settings/
Disable the admin bar / buddybar at the top of every screen, put the code below into your wp-config.php at root of your WP install
`define ( ‘BP_DISABLE_ADMIN_BAR’, true );`

== move the search to the menu bar ==
This can be done by ADDING the following to your style.css — you might need to add/delete some pixels here and there, adjust to taste

“#header {
margin-bottom: 20px;
padding-top: 15px;
}

#header h1 {
bottom: 50px;
width: 100%;
}

#nav {
max-width: auto;
left: 20px;
right: 300px;
}

#header #search-bar {
top: 80px;
width: 300px;
}`