The answer is "NO"

The Darkroom Activation Code of your booth will only work to one computer specifically to your booth's computer. This cannot be used to another computer such as your personal computer.

How can I Edit Templates?

We recommend you do this on your personal computer using the trial version of Darkroom software. You can download it below. Once you have finished creating or editing your template you can just simply save it in a dongle hard drive and transfer it to your booth.

Darkroom 3 Trial Version