I found this document on-line:
https://www.caltax.com/wp-content/uploads/2018/03/NonresidentsONLINE.pdf#page78
I found an answer in the Appendix which states entering the incomes in column E of the Schedule CA 540NR form.
When using TurboTax, filing jointly as resident and non-residents of CA, it looks like I might have to make manual changes to the Schedule CA 540NR by selecting forms view.
