How to make an alias of an submodule option or make a related option merged?

Help
1

For example:

{ config, lib, ... }:
with lib;
let
  cfg = config.me;
in
{
  ...
  options.me.hmConfig = mkOption { # I want to make this can be merged.
     description = "hm";
     default = _: {};
  }
  config.home-manager.users.me = mkMerge [
        (_:  { ...  })
        cfg.hmConfig
  ];

}

I want to let me.hmConfig have merge property.
I tried type = options.home-manager.users.type.nestedTypes.elemType and type = functionTo attrs but both of them cannot work. The first one is failed due to infinity recursion.

2

I find that mkAliasOptionModule can work as my expection.

  imports = [
    (mkAliasOptionModule  [ "me" "hmConfig" ] [ "home-manager" "users" "me" ])
  ];