Our license system allows you to install a trial copy on multiple machines at the same time if you use the cTrader ID option, the license paid for the trial is tied to your unique cTrader ID (cTID), so you will need to be logged into your account.
As with normal software, you will need to download and install it on new machines.
You can read our license FAQs for more information.
This may also help you regarding product registration. https://help.clickalgo.com/account/registration/