What worked for me was to go to profile section first and scroll down to signature box. Place your cursor in it.
Open a new window.
In that new window go to the site you want to create the ticker.
Once the code has been created move your cursor/mouse to it and then right click. When it is highlighted select Copy.
Click back to your cruise chat profile window where your cursor is in the signature box.
Right click and select paste.
Hope this helps, was confusing for me too.