What to do if PA name box is grayed out

[amitesh]

Hi Everyone, I was filling out IMM5406. In that form is the first box where the PA name pops up (in English) automatically and the box is grayed out. but on the top of that form instruction is given that puts names in the native language as well. But the box is grayed out, I am unable to paste(or write) the PA name in my native language. For other members boxes are fine and I can paste the name in my native language. Should I write for other members and leave that for PA or that is due to I am doing some mistake? Please guide me with that.