Hi,
When you have a input field where the user can enter multiple lines of text, an autosizing textareas is often the best solution. By adding some javascript to an Axure prototype, it is possible to have autosizing textares.
Live demo Textarea download .
Thank you so much, exactly what I was trying to accomplish! Didn’t use JavaScript, though, so things got messy very quickly 
When Axure moved to the new forum the example file was lost in translation. Here it is TextArea.rp (244.9 KB)
Note that the above example must be updated to work in Axure 9.
/sam
