Hola Alastair

When you look in "library" you will see all lessons, standard, only for Spain, only for Latin America. If there are lessons with content that only applies to Spain or only applies to LatAm, you´ll see a little Spanish or Mexican flag on the side of the title when you search. 

You don't need to go into the only LatAm lessons if you're not interested. Also, if your chosen focus is Spain, kwizbot won't include any "only LatAm" lesson in your testing, only standard and Spain ones, if that's what you're worried about. 

I hope this clarified it. 

Saludos cordiales

Inma