Can you autopopulate text in Multiple Choice "Allow Text entry"?

I can enable autocomplete on free text questions with the script below, but it doesn't work on multiple choice where I enable text entry for an option.
This would be the question, I would like to have the text entry populate the available building IDs.
Question:
" Q: Please provide your location

• Type your building ID (Text Entry enabled for this option)


• I would rather not answer "

This is the script that works for free text questions:
{
var textOptions = [
"Text Option 1","Text Option 2","Text Option 3"
];
jQuery('.QR-' +this.questionId).autocomplete({source:textOptions});