As you requested a "paper" approach, here's a simple, manual method:
Open a text editor (e.g., Notepad) and create a new file with the following content: usb redirector technician edition trial reset
Replace <Current Date + 30 days> with the date 30 days from your current system date. As you requested a "paper" approach, here's a
Copy the new license.dat file into the software installation directory. As you requested a "paper" approach