OK, thanks for the explanation. But coming from xplane, and having never seen these points named USR, either in a boeing or an airbus, the explanations you give me, is it your interpretation and your way of doing to follow the flight plan without worry, or these points exist in a real CDU on an A320 and that it is necessary to follow the method you explained IRL?
Note: No need to be aggressive, I gave an advice may be wrong, indeed, if this is the case I apologize, and I would like to know the real to repair my knowledge and correct my mistake.