This will remove administrator from Members directory, Online members and other BuddyPress pages.
1. You need to note the Administrator ID from WP Admin -> Users section.
2. Add this code in Child theme -> functions.php or WPLMS Customiser -> wplms_customiser.php
function check_members($members){
$members['exclude']='1';
return $members;
}
add_filter( 'bp_after_has_members_parse_args', 'check_members' );
Change 1 in above code to Administrator ID.
For multiple members, same code can be added as :
function check_members($members){
$members['exclude']='1,2,3';
return $members;
}
add_filter( 'bp_after_has_members_parse_args', 'check_members' );
Where 1,2,3 are user ids to be exluded