Yes, this is a packout.
No it isn't.
No it doesn't
Before I found the perfect game for this organizer, I stored nails, screws, and various other bits & bobs in it. Once I realized how well it worked with the board game I've got in it now, I bought a 2nd (those expansions just keep coming! I've got even more mini-minions to store!!). Just because the ad shows 1 thing, doesn't mean you can't put something else in it.
No it wont this latches to the exact same box via the sides..but no packout
I am unsure of what the question is.
Yes the bins are removable and when removed they are one big open area, no dividers. They are very handy and being able to hook them together is nice but they get heavy quickly. Hope this helps.