My terminology is likely not correct! AFAIK, a pull-down is a menu that usually starts near the top of a Web page and 'pulls down' so that its items cover muc

My terminology is likely not correct! AFAIK, a pull-down is a menu that usually starts near the top of a Web page and 'pulls down' so that its items cover much of the page and let the user click to pick one of the menu options. I have contempt for pop-ups and also pull-downs so use "ups" for one and "downs" for the other. Instead of such controls, I prefer a better considered user interface (UI) that doesn't have the screen jump around. Basically for a good user experience (UX), I never want the screen to 'jump' in a way that surprises the user. A screen that jumps has a UI that is difficult to document succinctly and, thus, usually is not documented well or at all and, then, requires a user to experiement with the UI, assume some truths from some really thin hints, and waste effort. Instead I want the UI to be easy to understand carefully and thoroughly without experiments or guessing.