They should atleast put in a “refresh button” to quickly refresh the 4 animals in the sandbox trade center list. Everytine I go looking for a “golden genetic” animal, I have to buy all 4 animals and keep repeating until getting the one I want and some them can’t be sold until they are healed by vet.Yes, this. I would like to have the option to completely choose the animals in my zoo in sandbox mode. Rather than having to choose from just 4 animals which may not have the colouring, sizing etc I am looking for. I can't really see what function this limitation serves within Sandbox.
I'm not personally bothered one way or the other about scars, but I see no reason why an option shouldn't be added to Sandbox... the more options the better for total 'freeplay.'
Like you said, the option to remove scars in sandbox does hinder anyone and only improves upon “freeplay”.