How to Add California Schedule R - Apportionment and Allocation of Income to state 100S

I am a Florida S-Corp doing business in California so I need to complete the CA state S-Corp return, 100S. I have income that is sourced in both Florida and California. However, when I complete the CA 100S, it is counting all of my income as if it is source in California. In my research I see I need to complete a California Schedule R - to apportion the income. But that is not one of the schedules available. How do I add it to my CA 100S return?