i wish more Quake editors, like TrenchBroom or the Radiants, embraced some more modern approaches to level editing.
Like creating tile-based rules for prefabs, so one can quickly paint rooms and corridors:
https://www.youtube.com/watch?v=oHsMlyXhSqs
Or object scattering tools / physics-based placement:
https://www.youtube.com/watch?v=Q7OyQxnnK_Q
https://www.youtube.com/watch?v=Pth5NGSbPRs
Or smart selectors:
https://www.youtube.com/watch?v=HRiqQ0H9Swc
Or the array modifier:
https://www.youtube.com/watch?v=g3DFxH0N7U0
Or the stairs, railings, spiral generators that you see on Blender and Houdini.
Feels like TB innovated a lot in the beginning, but then just stagnated like the other Radiant's.