[12/23/21 update: One new template added that is triangle-based, specifically by taking all the 1-world-unit squares from the unfilled grid template and dividing them into four triangles.] I use pre-prepared templates to make a lot of NEFX maps and I felt it was time to pass them along for anyone else's use.
One of these is used to create many NEFX netmaps, and is a room of 700 1-WU square polygons with pre-textured walls, ceilings, and floors, differential shading, item spawns, and sounds.
Another one is similar but spanning the entire possible map, and may be used for solo maps. Of course, you may want to delete some of the squares.
The oldest one is the same as the second one except unfilled and not configured.
One new template added: A triangle one with all 1-world-unit squares divided into four triangles.
This utility will let you assign floor & ceiling heights without having to first set them up in a level editor!
Its actually a template level which you start out with and you create your own level in it.
The height range is from nearly -32 WU floor to 32 WU ceiling. Its like having height presets for 64 flights of stairs in a starship or building, or a resolution of 512 map elevation contours for your giant outdoor hills, valleys and pools of liquid. Hey, maybe both. There are as many ceiling settings as there are floor settings, so there's room for that underground cave system of yours too!
The included Read Me explains how to first use the presets and later how to delete the preset polygons, if need be.
See the description.