Right now this is a manual procedure. Either you know what the game uses (like CSGO with zoom sens 1 is MDV 133.3333%), or you select the "All" aim for the game and adjust the conversion setup until the output matches your settings. Do note though that a lot of games do not scale their scopes in a logical manner. So it might be impossible to find a multiplier that fits all the aims.
However making a magic button that reverses the conversion method for a specific aim is something I want to add. When and if I don't know yet, but it's definitely a desired funtion.