如何移动元素而不删除并重新插入到boost :: multi_index_container中？

#include<boost/multi_index_container.hpp>
#include<boost/multi_index/ordered_index.hpp>
#include<boost/multi_index/identity.hpp>
#include<iostream>
#include<string>

using boost::multi_index_container;
using namespace boost::multi_index;

struct Employee {
    int id;
    std::string name;
};

typedef multi_index_container<
    Employee,
    indexed_by<
        ordered_unique<tag<struct by_id>, member<Employee, int, &Employee::id>>,
        ordered_unique<tag<struct by_name>, member<Employee, std::string, &Employee::name>>
    >
> EmployeeContainer;

int main() {
    EmployeeContainer employees;

    // 插入元素
    employees.insert({1, "Alice"});
    employees.insert({2, "Bob"});
    employees.insert({3, "Charlie"});

    // 查找要移动的元素
    auto it = employees.get<by_id>().find(2);

    // 修改元素并移动到新位置
    employees.modify(it, [](Employee& e) {
        e.id = 4;
        e.name = "David";
    });

    // 输出结果
    for (const auto& employee : employees) {
        std::cout << "ID: "<< employee.id << ", Name: "<< employee.name<< std::endl;
    }

    return 0;
}