add-create-group-tab-on-bp-profile.php

<?php
/**
 * Add bp profile navigation for create group.
 */
function wbcom_add_bp_profile_tab_for_create_group() {

	if ( ! bp_is_my_profile() ) {
		return;
	}
	$slug        = bp_get_groups_slug();
	$access      = bp_core_can_edit_settings() && bp_user_can_create_groups();
	$groups_link = trailingslashit( bp_core_get_user_domain() . $slug );

	bp_core_new_subnav_item(
		array(
			'name'              => __( 'Create Group' ),
			'slug'              => 'create-group',
			'parent_slug'       => $slug,
			'parent_url'        => $groups_link,
			'position'          => 1010,
			'user_has_access'   => $access,
			'screen_function'   => function () {
			},
			'show_in_admin_bar' => false,
			'link'              => trailingslashit( bp_get_groups_directory_permalink() . 'create' ),
		)
	);
}

add_action( 'bp_groups_setup_nav', 'wbcom_add_bp_profile_tab_for_create_group', 100 );