I just found my ASB Share Trading is already setup so I can buy ETF's easily :)
I see the smart share ETF's are listed.
Might try the New Zealand Top 50 (FNZ)
Simplicity looks like a kiwisaver fund?
Can I invest "directly" into it? (not via kiwisaver)
Oh, I found it:
Quite new (March 2017)
Minimum 10K which is fine.
I like that you can withdraw anytime :)