another thing i should've added here was being able to create arches in doorways with curves. it doesn't have to be specifically doorways, ofc, but seeing how Hammer 2 did it, it would be really nice to have. Thank you for taking all my suggestions into consideration :D
i found some paid addons that do the 2 things that i wanted.
https://superhivemarket.com/products/nexus-godot-pipeline
https://superhivemarket.com/products/decal-flow
i second this
right now, all i can think about is Anvil. you really made a great addon here
another thing i should've added here was being able to create arches in doorways with curves. it doesn't have to be specifically doorways, ofc, but seeing how Hammer 2 did it, it would be really nice to have. Thank you for taking all my suggestions into consideration :D