Vehicles are missing in default CryEngine 5 installation

I installed CryEngine 5 from an official site. Now I want to add a vehicle to a level.

As described in Beginners manual, I need to

open the Create Object tool, go to Entity and expand Vehicles in the list that appears in the bottom of the tool.

However, there is no Vehicles item:

How to add DefaultVehicle into my level?

It turns out that in CryEngine 5 you need to download GameSDK, because engine does not have this editor by default.