Snapmap-like map editor for classic Doom?

[MTF Sergeant]

After making a few maps via Snapmap on Doom'16, I found it much easier to make levels via pre-programmed prefabs, instead of directly making sectors and linedefs on SLADE and Doom Builder. Is there any map editor for classic Doom, which functions like Snapmap? If not, is anyone up for having an editor like that?

[Nevander]

No editor that I know of but I believe GZDoom Builder supports prefabs.

[Aquila Chrysaetos]

GZDoom Builder and Doom Builder X both should support prefabs, as they both inherited from Doom Builder 2, which did support them.

If you want to do that, then you should check the prefabs folder in the idgames archive.

https://www.doomworld.com/idgames/prefabs/