menu suggestions

This is probably my wackiest suggestion yet. I really think the menu music should loop instead of playing once then transitioning into science-y ambience. That's the entire suggestion. I have nothing to back myself up with, and no essay on why this should be in the game. I just think it should...

In the market, when you close the window and re-open it, the filtering is the same as when you close it. Can we please have that feature for the animals already in the zoo? Thank you :)

Moved from beta feedback for better visibility. I was playing a bit of the beta and had to open up the zoo panel for some employee maintenance (training and work zoning mostly) and I had a thought: Wouldn't it be nice if we could pin certain menus to stay up until manually closed, rather than...