How to set user-level permissions:
For example, the Manager has a permission level of 0 by default, and the System Administrator has a permission level of 1 by default. Other users may have different permission levels.
Now, if any field has a different permission level on the Doctype (e.g., field ‘A’ has a permission level of 0), only the Manager can see it, not the System Administrator. So, how do we change that permission level for a user?
Also, when we create a new user or update an existing user, how do we assign a user level (e.g., 0, 1, 2, etc.)?