Forum text area expander

[Harry_Dicks]

Hello. I was recently trying to edit my thread, and it is rather large, so I was trying to "expand the area" where text goes, as there is a white bar along the bottom, and when I mouseover it, the cursor changes like I would expect it to as I would prepare to expand the window. However, I cannot get it to work.

Is this feature supposed to be enabled or work for anyone? If it could work, that would be fantastic. As I'm trying to edit my rather large post but I am only able to see 7 rows of text at a time, which kinda sucks.