Change Reason filed to show in RFC Implementation

Hi Experts,

My requirement is to show change reason in rfc implementation form, if it is either one of service advisory or service bulletin. So i have added 2 array field there, and it is displaying if is coming from script,but if i want to add manually, like by giving change number and press, this is not showing, i have added the condition.

PFA,

Please help me out to solve this issue, Thanks in Advance.

Regards,

Abarna