By default, the platform does not have this option. You can use the following CSS code to hide the Search feature for logged out users.

Please follow the steps below: Note this code snippet only works for Header Styles 1,2 & 3, please see second code snippet for Style 4.

1. Go to BuddyBoss > Theme Options

2. Under Custom Codes, enable CSS

3. Append the following:

body:not(.logged-in) ul#primary-menu li:nth-child(6),body:not(.logged-in) a.header-search-link {
    display: none !important;
}

4. Save changes 

If you are using Header Style 4 in the Buddyboss - Theme Options - Header, then following the same steps as above you will need to use this code snippet instead.

.header-style-4:not(.logged-in) .search-form {
    display: none !important;
}

Note: Any modifications are considered as custom work already. Know more about our Support policy here: https://www.buddyboss.com/support-policy/