MartinHowe wrote:I'm not sure if this is a missing feature or a bug, but there are no configurations for mapping in UDMF and Doom 1. ....
Since Doom is still a valid game is there any way this could be supported in future?
Sgt. Shivers asked the same question 4.5 years ago.
The general consensus at that time was, and I guess still is, that because mapping for Doom1 is not so popular, to just use the Doom2 config with DOOM.wad and just ignore the sprites/textures which are showing up as missing.
For example:

I agree, proper support for the DOOM1 mapping variety configs would be nice.