Custom Defaults not in the UI? e.g. rename 'My Libraries'

After getting seafile up and running I have some managment questions that involve default settings not available in the UI. Wondering if they might be available in or worst case some code changes.

  1. can new users be assigned to a set of default groups?
  2. can new user be assigned to a set of default shares?
  3. Can new/existing users be excluded from their ‘My Libraries’ folder. I mean new users can only access shared libraries and can’t make their own libraries.
  4. Can the name “My Libraries” be changed. Having a space is problematic as well as “My”

at least as of 3 years ago #3 was not possible

so if not of this is supported at this time can someone give a hint where in the code they could be added.