Remove post tab from all roles except Model role.

um-reomve-tab-from-selected-role.php

add_filter('um_profile_tabs', 'add_post_tab_only_model_role', 1000 );
function add_post_tab_only_model_role( $tabs ) {

	$display_roles = array( 'model' );

	if ( !in_array( um_user('role') , $display_roles )  ) {
		unset($tabs['posts']);
	}

	return $tabs;
}