Imagine one has an injury and is doing physio on one limb only. There is no left/right only option for possible strength exercises so the 'muscle view' benefit after such a workout is wrong as the workout is shown to impact both sides of the body.
In this case an option to choose left/right only for a given exercise would be useful.
Moreover, imagine if an amputee were using this app, that 'muscle view' graphic could be classed as insensitive. Maybe one should not only be able to choose left/right only but also be able to customise the body represention in the app based on their person situation.
