Hey ,
I recently came across addon for blender.
https://.com/watch?v=gM1N6WUQ_gc
That said - Give it a look at. It is very similar to Doom ED, DoomBuilder and SLADE.
Give it a look at - https://-lucas.itch.io/level-buddy
Edit: Sidenote - It is still in development. So There may be bugs or incomplete features.