State tax filing

I have one other question in case someone already knows how...

 

In TT2017... where would it ask the question about one piece of income to choose CA sourced? I'm trying to run a version of my taxes that will show me what they think I owe based on that answer. As currently filled out, TT says I owe nothing but I already know that's not true.  But I don't know where to tell the s/w that one 1099 is CA Sourced. Has anyone been able to get the software to do the right calculation for you?  (In my research it says to use Schedule R, for allocations but I don't see anywhere in TT2017 CA return that has that form.)