In case you need to restrict your Tymeshift account to only certain users you can easily do this within Admin Settings without having to manually deactivate each agent!
Here is how to:
Access Admin Settings, head to Advanced Options and Select either the users that you want to exclude from Tymeshift or the ones you want to include depending on how you want to approach this.
Take a look at how we restrict the account to one user only in this GIF:
Note: please bear in mind that you'll need to have Admin Rights within Tymeshift to perform this change.