Can't find text box feature for entering text in a form in command list.

[Mo Mentum]

There is a (sort of) text box or (sort of) form field in Word that I can't find. It is not a true form field or a text box. Instead, it is a gray box that you insert (like a place holder) and then you click to highlight it, type in your text and move on. You can even insert text into the box as a reminder of what info you should be entering. The gray box goes away and your text remains. If you have several, you can hit the F11 key and it jumps to the next. I have it some older docs, but cannot find it in the commands.