Comment by Tanoc

ALT+TAB, TAB, ↓, ↓, ↓, CTRL+HOME.

For a lot of people this is a recognizable pattern. Switch window, select element, scroll down, then snap back to the very top. The keyboard commands above should do the same thing no matter if it's your text editor or your web browser. People should know these are going to work regardless of what they're using. Because these aren't key commands going to the program, these are key commands going to the operating system. The program shouldn't be able to arbitrarily choose whether it abides by these. Consistency is important not only for speed, but for human understanding and capability. If every door had a different way of opening it such as drawing a series of lines or tapping a certain rhythm or belching thirty feet away people would be mentally taxed discovering that particular door's interfacing method, and common tools would not be able to help those who couldn't find the interface or use it because of disability or differing ability. It's only doors with extremely specialized designs like blast doors that have an unusual interface and interfacing method, because they're designed to do one very specific thing that lies far outside of common use cases. Your chatroom program, image viewer, or archive unpacker is not a blast door. Put a door handle on it where everyone expects it to be.