@ann3nova If I was in 1980s, building early windowed UIs, I'd made a point of allowing the user to configure vertical scrollbars onto the left side of windows, and the mouse pointers point up and right, not up and left.Ironically, the major ones ended up implementing the support of both in only a few years, but in most cases, restricted it only to users in countries where right-to-left writing is common, not for left-handed mousers in locales with left-to-right writing systems being dominant.