I'm a bit confused as to store a few cushions in my Columbia. The last few trips I never put them in. This time I need to. The front bunk just stays and slides all the way in. No problem there. But the rear bunk has two pieces that are removed for storage ... is there a spot to put these? Now that I'm carrying all of the cushions in it, I lost a lot of storage space as I'm putting them on the floor between the 3rd bed / benches. Anyone know?