How to customize Web Form Sublink on Website Portal sidebar for logged in users

Im new in creating a webform
The sublinks doesnt appear when using Web Form, no read only fieldtype but on booking doctype its working

Also how do i remove these

Once logged into ERPNext Desk as Administrator
Go to Website -> Portal Settings
Check Hide Standard Sidebar Menu to completely make it invisible to everybody.
Or
On same page you can customize it as per your needs.

thanks