CubeCell as ClassB EndNode

Hi,
I was looking into the documentation, and here on the forum, and I was not able to conclude if the new CubeCell is able to work as a ClassB EndNode.
I found an old post, saying that the support for ClassB was removed from the library, because of a poor clock on CubeCell module.

Does Heltec has a module (not only CubeCell, but preferable), which can work as a ClassB device? Is there any kind of example code for a working ClassB EndNode device running with CubeCell module?
Any suggestions where to find more information?

Many thanks in advance,
Nathan