Just put yourself in the users' position and try to create a set of screens that will help them gather information and make decisions as fast as possible.
Whether it's employees working from home or students taking an instructor-led online (ILO) class, often it is impractical to see the users' screens to help them with difficulties.
有的是在家里工作的员工，有的是参加在线培训课程(instructor - led online, ILO)的学员，所以想通过查看用户的屏幕来帮助他们解决问题通常是不现实的。