Hello Cristian,
You are correct that this is a feature that is not currently available with the Third Party Licensing & Activation Toolkit. However I agree that this is a feature that could be very useful and will discuss with my team to potentially implement in the future. In the meantime as a workaround, if you have a customer that needs to reactivate their license, you can go into the license details and manually increase the number of activations remaining. This will allow them to activate the license again.
I hope this helps clear things, up, and appreciate the feedback. Please feel free to keep the new ideas coming!
David