The only possible way to do what you want is by creating the text element in another program like Photoshop,save it as a PNG file and then import that in InteractBuilder as a Graphical Element.

At this moment you can use these styles for text:


But you can make the text underlined by adding a Shape element ( a line) and add in below the text element.

I was able to reproduce this situation and forwarded to our lead developer. Thank you for your feedback.

Hi Laurel, we are still working on a fix for this situation. Thank you for your feedback.

I was able to reproduce this situation and forwarded to our lead developer. Thank you for your feedback.