Luxion released KeyShot 9.1 which brings more possibilities.
The update features the ability to switch the real-time view and final output between CPU and GPU independently. What is more, users now have support for AxF materials, plus support for render layers on multi-GPU systems.
Also, GPU mode can be used for network rendering (you need a paid add-on) which means that Mac users without internal Nvidia cards can use the GPUs in external worker machines.
The update brings a new system of name templates for generating file names for rendered output in standardized formats: add revision number, scene name, active camera, and date.
Users of the Pro edition can get their hands on Unwrap UV which allows using seams, direction guides and position charts to control UV flow.
You can learn more here.