You can install Final Draft on as many computers as you want. However, if you have the standard retail package, only two of these can be activated at a given time and can be used only on computers owned and operated by you.
If you have more than two computers on which you'd like to run Final Draft, you can either deactivate one computer and move the activation to another, which is 100% free (for more information on deactivating, see this article: How do I deactivate my software?) or you can purchase additional activations. Note that additional activations must be used only by the registered owner only on computers he or she owns and operates.
Please call our sales line, 818-995-8995 or 800-231-4055, if you are interested in purchasing an additional activation.