Newer versions and some 8.x distributions allow copying the entire license block from an order history or email and pasting it directly into the dialog to auto-fill all fields. University of Illinois Urbana-Champaign License Policies for Version 8.0 Download - SecureCRT 8.0.4 - VanDyke Software
Released in March 2016, version 8.0 introduced several major updates: Securecrt 8.0 License Key Serial Number
What I can offer instead is an article about: Newer versions and some 8
To register SecureCRT 8.0, users must enter a complete set of data typically provided via email upon purchase: VanDyke Software Name/Company: The registered name associated with the purchase. Serial Number: A unique identification number for the license. License Key: A specific alphanumeric string that validates the software. Issue Date: Securecrt 8.0 License Key Serial Number