Gender Switch Questions

What is the construction of the gender switch for his or her? I have a fact sentence that begins (no quotes):

" [Person] filed his/her Declaration of Intention . . . "

A gender switch, %, only tests for a gender value, M, F. What I suggest is using the “Person option” :His/Her.
Sentence template language

Thank you BobC. That seems simpler and I’ll use that.