Don´t make a mistake about DSC and Authentication: DSC is connection with your Directory Services. Qlikview uses by default windows for authentication method. You could change or integrate with another services.
If you want do use CUSTOM USERS, you cannot "import" users from ODBC. If you se ODBC, you want to customize Qlikview.
Take a look in Qlikview Server Reference Manual.
The only way to use in your scenarios is:
- Use DMS mode, not NTFS;
- Use Publisher to deliver reduced app with authorizations;
- Change your DSC to your Active Directory/Local Directory;
- Logon with Active Directory/Local Directory;
You cannot use two logon types in the same time: Active Directory or Custom Users;