Shadow Buster

RuideAlmeida, how do I change this?

I have seen where caches fill in a "grid" to show what D/T caches they have found. Where do I find the grid and how do I mark a square?

When I was attempting to activate a new trackable yesterday and got to the section of giving it a mission, the area to use was "shadowed" and I could not get my cursor there to start typing. The same thing is true of the description area. Can anyone help me overcome this? I definitely want this trackable to have a mission!