I don't know if top can do this interactively, but top in batch mode will output all the currently running processes:
top -b -d 1 > ~/top.list
That produces a file which is appended to every second, and it lists all current running processes. If you were feeling up to a bit of a script, you could wrap it in a while loop and view a temporary file to simulate the interactive view, I'm sure.
edit: Otherwise, take a look at htop, which allows you to scroll across and down the list of top processes. In fact, I've replaced top with htop since it's more colourful!