Trouble with Create member using REST API

Hello everyone,

I am using REST API to create member.

However, I realised that I can only add the member under the parent and cannot add more property information like: member alias, data storage, data type or two pass,…

The reason why I am using REST API because I want normal user can create member by themselves.

What should I do in this case to add more property for new member?

Thanks and have a nice day.