If you are selling or gifting your copy of Studio One, or you are the recipient of a gift or purchase for Studio One, the current registered user needs to click the below Knowledge Base Article Link and proceed to follow the Transfer Process; as described in the article:
https://support.presonus.com/hc/en-us/articles/360003393332-PreSonus-Software-License-Transfer
Please Note: There is a small fee involved with each transfer. Additionally a valid PreSonus User Account Email Address is required in order to complete any such transfer to another person.