We found that this Innovation credit is listed in the innovation catalog under LEED BD+C: New Construction v4.

https://www.usgbc.org/credits/new-construction-core-and-shell-schools-ne...

It gives an innovation credit just by using recycled water (Option 2). However that benefits the project in WE credit Indoor Water Use Reduction already. Is it right that we can still use this as an innovation credit? 

Our project will use reclaimed rainwater for flushing water closet and urinal, replacing its potable water and gaining points under WE credit, exemplary performance point and regional priority credit. This innovation credit will allow us earning another point if we can use it.