User built in functions

User built in functions

It would be nice if there were build in user functions that could 
  1. Let you know which groups a user belongs to
  2. What the user email is if passed a user login (not just current user)
  3. Get a list of all users
  4. Get a list of all groups
  5. Get all the groups a user is assigned to when passed in the user login
  6. Get all the users assigned to a group when passed a group name
Please add user functions to Zoho. Is it part of the roadmap for future Zoho releases?