(now Autodesk) Maya has a form of this, called hotbox, since first beta around 1997 when I first saw it, and probably before during development and probably bef

(now Autodesk) Maya has a form of this, called hotbox, since first beta around 1997 when I first saw it, and probably before during development and probably before that from Alias where it probably originated. They researched a lot on UI and interaction between a designer and the model and that's one of the things they went with. It's context sensitive and eventually you build out muscle memory for it, you don't even read anymore what's in it. https://www.youtube.com/watch?v=8MrjMy3N6vo https://www.youtube.com/watch?v=8MrjMy3N6vo