You can integrate REG file in the Registry page, use HKCU prefix to apply it to each user automatically.
Meaning when NTLite detects HKEY_CURRENT_USER, it will apply it to the default user hive.
If you want to run something instead on each user, use HKCU...Runonce key.
However, then use a command to first copy it from post-setup so when it's deleted after setup, you can run it after user creation.
Should make the option to delay execution to user-level, that was planned for a while now, pushing it up in priority.
Thanks.