Visual tools often involve direct manipulation via pointing and dragging. This doesn't have to be the only mode of interaction. It is entirely possible, probabl

Visual tools often involve direct manipulation via pointing and dragging. This doesn't have to be the only mode of interaction. It is entirely possible, probably highly desirable, to have visual tools which can be 100% keyboard driven. Many programmers explore ideas with pen and paper, beyond the restrictions that code as a sequence of characters would have. There are definitely benefits to be had in those areas.