I have an account (account 1) with 1 valid entitlement key, that i would like to move to a different account that allready has 3 valid entitlement key within. How do i "reset" the key in "account 1" so i can re-enter it and it will be managable in "account 2" ?
You will want to open a technical support case, let them know you want to move an entitlement key from one HiveManager to another (the more specific you can be, the better. What kind of HiveManager are you on currently, what kind are you moving to (Classic, NG, Online, On Premise, etc)). They will be able to walk you through the process from there; likely all they'll need to do is reinitialize the key for you, depending on what kind of HiveManager you have now and what kind you are moving to.