Under front Cushion of Center Console 18'SF??

[AnthonyAllen72]

I have attached a pic for Reference. Question is. What was the hatch with the(in my case Blue)Cushion in front of cc Originally used for? Mine is open with a couple battery trays towards the rear of the seat extention. Where they open from factory or was there some sort of drop-in or what? How have others utilized this space?? Pics are most welcome.