There are three Toolkit programs I'm familiar with; OEM, Integrator, and Corporate Engineering. The companies I've seen who are eligible for the Corporate Engineering toolkit are fairly large national companies with centralized engineering resources.
Give your local RA office a call to figure out if your company could benefit from and is elegible for the Toolkit program.
The way FactoryTalk licensing for the Toolkit works is generally that you get 5, 10, or 20 licenses and each license gets used by 1 engineer. That Toolkit license is powerful; it will activate any software in the Toolkit program, and as many simultaneously on your PC as you can run. I use a similar activation and can run FTView, RSLogix, RSLinx Classic, and SoftLogix all off the same single activation key.
Some choose to use the "Node-Locked" activations that require that you move around a hardware dongle between users, but most corporate engineering departments use the "Concurrent Licenses" that use a license server to provide the most flexibility for software use by a wide variety and large number of users.