Hello! I have achieved Elite Plus status and was wondering about the requalification level over the 2 year period. Do I understand the following correctly?

- The 60k need to be earned over the full two year period (so say 25k in year 1, 35k in year two)?
- I can buy up to 10k miles - does this apply only in one year, or in both years? I.e. could I do year 1 fly 15k + buy 10k and then year 2 fly 25k + buy 10k?

All a bit confusing for me...