Adding CPI as a benchmark

Is it possible to add CPI (or CPI+X%) as a benchmark?

I’ve looked but I cannot see anything that allows this

Hi there,
Only the ETF, Unit Trust, Managed Fund or Ordinary Share investment that are currently supported by Sharesight can be added as a benchmark to your portfolio.

Please reach out to us via support@sharesight.co.nz if you require further help.

Thanks