It's not that complicated. The hard part is making sense of all that numeric information. There are a number of fixed-layout screens you can pull up to follow entire markets broadly, and those come up with one or two hot-key presses. Then, there are standard analyses for individual ticker symbols. There's a news story system. There's a way to load up an Excel spreadsheet and run that, using live Bloomberg data. (Underneath, it's a Windows PC.) Those spreadsheets are typically pre-built by staff at trading firms, specialized for whatever they're doing. The number of keystrokes needed for most queries is very small.
One of the minor Bloomberg features is something like Craigslist, but for rich people. Yachts, rentals in the Hamptons, that sort of thing.
If you push the Help button twice, you get text chat to Bloomberg's help desk.