Understand lets you create your own customized workspace to organize
information, palettes, source code, etc. No need to
choose between separate windows (SDI model) or an all-in-one window
(MDI model), this GUI operates in a whole new way. You can put windows
anywhere you want. You can place windows inside other windows. You can
drag them out and put them on another monitor. Whatever works best for the
job you're doing.