You should note that evaluation licenses are only aimed for evaluation purposes and it is not possible to use an evaluation license in a Development environment. Besides this, in a final Denodo Platform 7.0 deployment, there is only one license, the Solution Manager license which is installed in the Solution Manager server. Then the License Manager server is in charge of delivering the license to each Denodo server so they could be launched after having approved their license request.
Regarding POCs, only the Denodo Partners are able to build them up for which they have to use their own Partner licenses and not evaluation license that can only be installed in Partner machines.
Hope this helps!