Custom license fields on Trial Version

is there a way to do this? how i can achieve that? when i use TurboActivate.GetFeatureValue working on a trial version it just gives me this Failed to get feature value. The feature doesn't exist. I understand that the feature is tied to a license.

I understand that the feature is tied to a license.

Exactly. So if you want the trial versions to each have specific feature values then you need to create a new license field like "trial expires". Now use product keys for trials as well as regular users.