Entering HELP Text for Word 2010 form fields

[slandi]

Hello everyone, I've been scratching my head for about 90 minutes on this one. I'm currently working on an extensive Word Form and was about to start entering some helpful text prompts for our users. Basically, there is already some text in the fillable textboxes, but I wanted to add some help text that would pop up when the user hits F1. However, unless I'm completely blind, that feature seems to be missing in Word 2010. Has anyone run into this and if so is the feature still there and it's in a hidden place or the feature is no longer available. Any help would be greatly appreciated.

Thanks,

Stefano