Can not open any OpenGL window in SDK

About your advice to change the version of the SDK. I have not understood that I need to add only one digit character ‘3’ between

org.jmonkeyengine:jme3-lwjgl

and

:$jmeVersion-$jmeVersionTag", true, true)

It was not so obviously.

Yes, it is really helpful. But I want to know - is it possible to change this parameter in the already installed SDK? Are there some flag in the properties of the SDK or I can change somewhere in the OS a launch.cfg file where this variable can be change to avoid the manual building the SDK?

Does it mean the SDK runs LWJGL2 by default and I have forced set up the using of LWJGL3?