Hi ctvu,
Your license information(account and password) will be downloaded into your PC, during Office installing.
So, if you want to change account for reactive, you need to download it again. We are really sorry for the inconvenience caused by activation steps.
Moreover, based on the situation, I recommend you submit feedback to our product feedback collection team. Many features of current programs were designed and upgraded based on many customers’ feedback.
Thank you for your understanding.
Andy Sek