A lot of Bloomberg &quot;data&quot; screens (this is also true in the APIs) are also interfaces to models. So like, if you pull up a bond model, you can override and it will reprice the asset, say, or back out some other parameter.<p>The Bloomberg interface is horrible and insane, and even relatively simple things like &quot;ok well if I change the vol on this European equity option and you give me a new price...i still need to know which method you used to solve...&quot;<p>There are plenty of other models in there that use much more complex pricing algos, and it would be useful to be like &quot;Trinomial blah blah assume vol calculated as daily variance over last 30 days&quot;