hey ive got a smaller cage right now and im looking at adding levels but i cant figure out how to add a level, with the right supports and still pull out my coroplast for cleaning. right now i have it so it just slides out the side which flips up, and secures with a clip. i have a cat and dog so it cant just be left open which would be easier. are there any suggestions you can give on how to add supports and still get the coroplast out?