For all of NASA’s faults, realistic practicing emergencies in a simulator is something they get right. The crew have already started this process with the Drago

For all of NASA’s faults, realistic practicing emergencies in a simulator is something they get right. The crew have already started this process with the Dragon, and will have been pressing these buttons while dressed for space and in the middle of simulated emergencies. (Fun fact, the buttons in the Soyuz capsule are currently operated with a astronaut held stick during launch and landing. https://space.stackexchange.com/questions/4114/why-is-a-stick-required-to-operate-soyuzs-computer https://space.stackexchange.com/questions/4114/why-is-a-stic...) As for the launch abort handle not working in orbit - moving the capsule rapidly away from a malfunctioning rocket behind you doesn’t really do you much good once there is no rocket attached to the capsule anymore. You would do a different sequence of actions to return from space in an emergency.