I posted about , time ago, in answerhub but the people started to put my down votes no idea why.
And how is faster that than the actual editor and the Call of Duty editor/Quake(Radiant) is faster than the Source engine (Hammer) editor but Hammer have more features.
For example in the UDK/UE4/Hammer need select the sides to move but in the Radiant is automatic, i’m going to make a video about .