When you create a task you have to write an instruction what resource have to do.
But field "description" in tasks of Windchill Project Link (only in the moment of creation) is too small and it is very uncomfortably to write here (i mean you don't see full text that you wrote). So, it will be cool to increase size of it. See the image below.
When you see the task that you already wrote, it look good. You can see fuul text that you wrote.