One good feature of the Aurora editor is its ability to open many files at once. It is possible to reduce a window to a small bar (sort of like a roller shade on the screen), or to set the size up to a full screen. Cutting and pasting between windows is no problem due to a common clipboard. Aurora also does column marking (shown), line marking and stream marking. Searches (and replaces) may be limited to a marked text block, which can be very effective in limiting replaces without having to verify each replacement individually. Aurora can use regular expressions, which makes it useful when you spend part of your time in a unix environment.