Hello Presonus family ,My name Wai Phyo. My country is Myanmar. My work is guitar tutor and music production at KST Music School in Myitkyina.I am personus user. Because Personus product and studio one recoding software is too easy to use.I like thit.But I have one question.I have two product key.How to upgrade Studio one artist 5.3.0 version to Studio one professional version with two product key? Please tell me your answer. Have a nice day Presonus family.